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	<h1 id="firstHeading" class="firstHeading">Google search</h1>
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		<h3 id="siteSub">From Wikipedia, the free encyclopedia</h3>
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		<div id="jump-to-nav">Jump to: <a href="#column-one">navigation</a>, <a href="#searchInput">search</a></div>
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<div class="metadata topicon" id="protected-icon" style="display:none; right:55px;"><a href="/wiki/Wikipedia:Protection_policy#semi" title="This article is semi-protected."><img alt="This article is semi-protected." src="http://upload.wikimedia.org/wikipedia/commons/thumb/f/fa/Padlock-silver-medium.svg/20px-Padlock-silver-medium.svg.png" width="20" height="20" /></a></div>
<div class="dablink">This article is about the <a href="/wiki/Web_search_engine" title="Web search engine">search engine</a>.  For the corporation, see <a href="/wiki/Google" title="Google">Google</a>.</div>
<table class="infobox" cellspacing="5" style="width:22em; text-align:left; font-size:88%; line-height:1.5em;">
<caption class="" style="font-size:125%; font-weight:bold;"><i>Google search</i></caption>
<tr>
<th colspan="2" class="" style="text-align:center; text-align:center; font-size:125%; font-weight:bold;"><a href="/wiki/File:Google.png" class="image"><img alt="Google.png" src="http://upload.wikimedia.org/wikipedia/commons/thumb/5/51/Google.png/200px-Google.png" width="200" height="72" /></a></th>
</tr>
<tr class="">
<td colspan="2" class="" style="text-align:center;"><a href="/wiki/File:Google_web_search.png" class="image" title="Google Search homepage"><img alt="Google Search homepage" src="http://upload.wikimedia.org/wikipedia/en/thumb/9/96/Google_web_search.png/250px-Google_web_search.png" width="250" height="142" class="thumbborder" /></a><br />
<span style="">The <a href="/wiki/Google" title="Google">Google</a> homepage</span></td>
</tr>
<tr class="">
<th style="text-align:left;"><a href="/wiki/Uniform_Resource_Locator" title="Uniform Resource Locator">URL</a></th>
<td class="" style=""><a href="http://www.google.com/" class="external text" rel="nofollow">www.google.com</a><br />
<a href="#Domain_names">list of domain names</a></td>
</tr>
<tr class="">
<th style="text-align:left;">Commercial?</th>
<td class="" style="">Yes</td>
</tr>
<tr class="">
<th style="text-align:left;">Type of site</th>
<td class="" style=""><a href="/wiki/Web_search_engine" title="Web search engine">Search Engine</a></td>
</tr>
<tr class="">
<th style="text-align:left;">Registration</th>
<td class="" style="">Optional</td>
</tr>
<tr class="">
<th style="text-align:left;">Available <a href="/wiki/Natural_language" title="Natural language">language</a>(s)</th>
<td class="" style=""><a href="#International">Multilingual</a> (124)</td>
</tr>
<tr class="">
<th style="text-align:left;">Owner</th>
<td class="" style=""><a href="/wiki/Google" title="Google">Google</a></td>
</tr>
<tr class="">
<th style="text-align:left;">Created by</th>
<td class="" style=""><a href="/wiki/Sergey_Brin" title="Sergey Brin">Sergey Brin</a> and <a href="/wiki/Larry_Page" title="Larry Page">Larry Page</a></td>
</tr>
<tr class="">
<th style="text-align:left;">Launched</th>
<td class="" style="">September 15, 1997<sup id="cite_ref-0" class="reference"><a href="#cite_note-0"><span>[</span>1<span>]</span></a></sup></td>
</tr>
<tr class="">
<th style="text-align:left;"><a href="/wiki/Alexa_Internet" title="Alexa Internet">Alexa</a> rank</th>
<td class="" style="">1<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span>[</span>2<span>]</span></a></sup></td>
</tr>
<tr class="">
<th style="text-align:left;">Revenue</th>
<td class="" style="">From <a href="/wiki/AdWords" title="AdWords">AdWords</a></td>
</tr>
<tr class="">
<th style="text-align:left;">Current status</th>
<td class="" style="">Active</td>
</tr>
</table>
<p><b>Google Search</b> or <b>Google Web Search</b> is a <a href="/wiki/Web_search_engine" title="Web search engine">web search engine</a> owned by <a href="/wiki/Google" title="Google">Google</a> Inc. and is the most-used search engine on the <a href="/wiki/World_Wide_Web" title="World Wide Web">Web</a>.<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span>[</span>3<span>]</span></a></sup> Google receives several hundred million queries each day through its various services.<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span>[</span>4<span>]</span></a></sup> The main purpose of Google Search is to hunt for text in webpages, as opposed to other data, such as with <a href="/wiki/Google_Image_Search" title="Google Image Search" class="mw-redirect">Google Image Search</a>. Google search was originally developed by <a href="/wiki/Larry_Page" title="Larry Page">Larry Page</a> and <a href="/wiki/Sergey_Brin" title="Sergey Brin">Sergey Brin</a> in 1997.<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span>[</span>5<span>]</span></a></sup></p>
<p>Google Search provides more than 22 special features beyond the original word-search capability.<sup id="cite_ref-fea_5-0" class="reference"><a href="#cite_note-fea-5"><span>[</span>6<span>]</span></a></sup> These include synonyms, weather forecasts, time zones, stock quotes, maps, earthquake data, movie showtimes, airports, home listings, and sports scores. (<i>see below:</i> <a href="#Special_features">Special features</a>). There are special features for numbers including prices, temperatures, money/unit conversions ("10.5 cm in inches"), calculations (&#160;3*4+sqrt(6)-pi/2&#160;), package tracking, patents, area codes,<small><sup id="cite_ref-fea_5-1" class="reference"><a href="#cite_note-fea-5"><span>[</span>6<span>]</span></a></sup></small> and rudimentary <a href="/wiki/Language_translation" title="Language translation" class="mw-redirect">language translation</a> of displayed pages.</p>
<p>The order of search results on Google's search-results pages is based on a priority rank called a "<a href="/wiki/PageRank" title="PageRank">PageRank</a>". Google Search provides many options for customized search (<i>see below:</i> <a href="#Search_options">Search options</a>), such as: exclusion ("-xx"), inclusion ("+xx"), alternatives ("xx OR yy"), and wildcard ("x * x").<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span>[</span>7<span>]</span></a></sup></p>
<table id="toc" class="toc">
<tr>
<td>
<div id="toctitle">
<h2>Contents</h2>
</div>
<ul>
<li class="toclevel-1 tocsection-1"><a href="#PageRank"><span class="tocnumber">1</span> <span class="toctext">PageRank</span></a></li>
<li class="toclevel-1 tocsection-2"><a href="#Search_results"><span class="tocnumber">2</span> <span class="toctext">Search results</span></a></li>
<li class="toclevel-1 tocsection-3"><a href="#Non-indexable_data"><span class="tocnumber">3</span> <span class="toctext">Non-indexable data</span></a>
<ul>
<li class="toclevel-2 tocsection-4"><a href="#Google_optimization"><span class="tocnumber">3.1</span> <span class="toctext">Google optimization</span></a></li>
</ul>
</li>
<li class="toclevel-1 tocsection-5"><a href="#Functionality"><span class="tocnumber">4</span> <span class="toctext">Functionality</span></a>
<ul>
<li class="toclevel-2 tocsection-6"><a href="#Search_syntax"><span class="tocnumber">4.1</span> <span class="toctext">Search syntax</span></a></li>
<li class="toclevel-2 tocsection-7"><a href="#Query_expansion"><span class="tocnumber">4.2</span> <span class="toctext">Query expansion</span></a></li>
<li class="toclevel-2 tocsection-8"><a href="#.22I.27m_Feeling_Lucky.22"><span class="tocnumber">4.3</span> <span class="toctext">"I'm Feeling Lucky"</span></a></li>
<li class="toclevel-2 tocsection-9"><a href="#Rich_Snippets"><span class="tocnumber">4.4</span> <span class="toctext">Rich Snippets</span></a></li>
<li class="toclevel-2 tocsection-10"><a href="#Special_features"><span class="tocnumber">4.5</span> <span class="toctext">Special features</span></a></li>
<li class="toclevel-2 tocsection-11"><a href="#Search_options"><span class="tocnumber">4.6</span> <span class="toctext">Search options</span></a></li>
<li class="toclevel-2 tocsection-12"><a href="#Error_messages"><span class="tocnumber">4.7</span> <span class="toctext">Error messages</span></a>
<ul>
<li class="toclevel-3 tocsection-13"><a href="#January_2009_malware_bug"><span class="tocnumber">4.7.1</span> <span class="toctext">January 2009 malware bug</span></a></li>
</ul>
</li>
<li class="toclevel-2 tocsection-14"><a href="#Google_Doodle"><span class="tocnumber">4.8</span> <span class="toctext">Google Doodle</span></a></li>
<li class="toclevel-2 tocsection-15"><a href="#Google_Caffeine"><span class="tocnumber">4.9</span> <span class="toctext">Google Caffeine</span></a></li>
</ul>
</li>
<li class="toclevel-1 tocsection-16"><a href="#International"><span class="tocnumber">5</span> <span class="toctext">International</span></a>
<ul>
<li class="toclevel-2 tocsection-17"><a href="#Languages"><span class="tocnumber">5.1</span> <span class="toctext">Languages</span></a></li>
<li class="toclevel-2 tocsection-18"><a href="#Domain_names"><span class="tocnumber">5.2</span> <span class="toctext">Domain names</span></a></li>
</ul>
</li>
<li class="toclevel-1 tocsection-19"><a href="#Search_products"><span class="tocnumber">6</span> <span class="toctext">Search products</span></a></li>
<li class="toclevel-1 tocsection-20"><a href="#Energy_consumption"><span class="tocnumber">7</span> <span class="toctext">Energy consumption</span></a></li>
<li class="toclevel-1 tocsection-21"><a href="#See_also"><span class="tocnumber">8</span> <span class="toctext">See also</span></a></li>
<li class="toclevel-1 tocsection-22"><a href="#References"><span class="tocnumber">9</span> <span class="toctext">References</span></a></li>
<li class="toclevel-1 tocsection-23"><a href="#Further_reading"><span class="tocnumber">10</span> <span class="toctext">Further reading</span></a></li>
<li class="toclevel-1 tocsection-24"><a href="#External_links"><span class="tocnumber">11</span> <span class="toctext">External links</span></a></li>
</ul>
</td>
</tr>
</table>
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<h3><span class="mw-headline" id="PageRank">PageRank</span></h3>
<div class="rellink relarticle mainarticle">Main article: <a href="/wiki/PageRank" title="PageRank">PageRank</a></div>
<p>Google's rise to success was in large part due to a <a href="/wiki/Patent" title="Patent">patented</a> <a href="/wiki/Algorithm" title="Algorithm">algorithm</a> called <a href="/wiki/PageRank" title="PageRank">PageRank</a> that helps rank web pages that match a given search string.<sup id="cite_ref-brin_7-0" class="reference"><a href="#cite_note-brin-7"><span>[</span>8<span>]</span></a></sup> Previous keyword-based methods of ranking search results, used by many search engines that were once more popular than Google, would rank pages by how often the search terms occurred in the page, or how strongly associated the search terms were within each resulting page. The PageRank algorithm instead analyses human-generated <a href="/wiki/Hyperlink" title="Hyperlink">links</a>, assuming that web pages linked from many important pages are themselves likely to be important. The algorithm computes a <a href="/wiki/Recursion" title="Recursion">recursive</a> score for pages, based on the weighted sum of the PageRanks of the pages linking to them. PageRank is thought to <a href="/wiki/Correlation" title="Correlation" class="mw-redirect">correlate</a> well with human concepts of importance. In addition to PageRank, Google over the years has added many other secret criteria for determining the ranking of pages on result lists, reported to be over 200 different indicators.<sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span>[</span>9<span>]</span></a></sup> The details are kept secret due to spammers and in order to maintain an advantage over Google's competitors.</p>
<h2><span class="mw-headline" id="Search_results">Search results</span></h2>
<p>The exact percentage of the total of web pages that Google <a href="/wiki/Index_(search_engine)" title="Index (search engine)">indexes</a> is not known, as it is very hard to actually calculate. Google not only indexes and caches web pages but also takes "snapshots" of other file types, which include <a href="/wiki/Portable_Document_Format" title="Portable Document Format">PDF</a>, <a href="/wiki/Word_document" title="Word document" class="mw-redirect">Word documents</a>, <a href="/wiki/Excel_spreadsheet" title="Excel spreadsheet" class="mw-redirect">Excel spreadsheets</a>, Flash SWF, plain text files, and so on.<sup id="cite_ref-9" class="reference"><a href="#cite_note-9"><span>[</span>10<span>]</span></a></sup> Except in the case of text and <a href="/wiki/SWF" title="SWF">SWF</a> files, the cached version is a conversion to (X)HTML, allowing those without the corresponding viewer application to read the file.</p>
<p>Users can customize the search engine, by setting a default language, using the "SafeSearch" filtering technology and set the number of results shown on each page. Google has been criticized for placing long-term <a href="/wiki/HTTP_cookie" title="HTTP cookie">cookies</a> on users' machines to store these preferences, a tactic which also enables them to track a user's search terms and retain the data for more than a year. For any query, up to the first 1000 results can be shown with a maximum of 100 displayed per page.</p>
<h2><span class="mw-headline" id="Non-indexable_data">Non-indexable data</span></h2>
<p>Despite its immense index, there is also a considerable amount of data available in online databases which are accessible by means of queries but not by links. This so-called invisible or <a href="/wiki/Deep_Web" title="Deep Web">deep Web</a> is minimally covered by Google and other search engines.<sup id="cite_ref-10" class="reference"><a href="#cite_note-10"><span>[</span>11<span>]</span></a></sup> The deep Web contains <a href="/wiki/Library_catalog" title="Library catalog">library catalogs</a>, official <a href="/wiki/Legislative" title="Legislative" class="mw-redirect">legislative</a> documents of governments, <a href="/wiki/Phone_book" title="Phone book" class="mw-redirect">phone books</a>, and other content which is dynamically prepared to respond to a query.</p>
<p>Privacy in some countries forbids the showing of some links. For instance in Switzerland every private person can force Google Inc. to delete a link, which contains their name.<sup class="Template-Fact" title="This claim needs references to reliable sources from September 2009" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed">citation needed</a></i>]</sup></p>
<h3><span class="mw-headline" id="Google_optimization">Google optimization</span></h3>
<div class="rellink relarticle mainarticle">Main article: <a href="/wiki/Search_engine_optimization" title="Search engine optimization">Search engine optimization</a></div>
<p>Since Google is the most popular search engine, many <a href="/wiki/Webmaster" title="Webmaster">webmasters</a> have become eager to influence their website's Google rankings. An industry of consultants has arisen to help websites increase their rankings on Google and on other search engines. This field, called <a href="/wiki/Search_engine_optimization" title="Search engine optimization">search engine optimization</a>, attempts to discern patterns in search engine listings, and then develop a methodology for improving rankings to draw more searchers to their client's sites.</p>
<p>Search engine optimization encompasses both "on page" factors (like body copy, title elements, H1 heading elements and image <a href="/wiki/Alt_attribute" title="Alt attribute">alt attribute</a> values) and Off Page Optimization factors (like <a href="/wiki/Anchor_text" title="Anchor text">anchor text</a> and PageRank). The general idea is to affect Google's relevance algorithm by incorporating the keywords being targeted in various places "on page", in particular the title element and the body copy (note: the higher up in the page, presumably the better its keyword prominence and thus the ranking). Too many occurrences of the keyword, however, cause the page to look suspect to Google's spam checking algorithms.</p>
<p>Google has published guidelines for website owners who would like to raise their rankings when using legitimate optimization consultants.<sup id="cite_ref-11" class="reference"><a href="#cite_note-11"><span>[</span>12<span>]</span></a></sup></p>
<h2><span class="mw-headline" id="Functionality">Functionality</span></h2>
<div class="thumb tright">
<div class="thumbinner" style="width:222px;"><a href="/wiki/File:Feature.png" class="image"><img alt="" src="http://upload.wikimedia.org/wikipedia/en/thumb/4/47/Feature.png/220px-Feature.png" width="220" height="125" class="thumbimage" /></a>
<div class="thumbcaption">
<div class="magnify"><a href="/wiki/File:Feature.png" class="internal" title="Enlarge"><img src="http://bits.wikimedia.org/skins-1.5/common/images/magnify-clip.png" width="15" height="11" alt="" /></a></div>
Image of definition link provided for many search terms.</div>
</div>
</div>
<p>The Google search engine has many intuitive<sup class="Template-Fact" title="This claim needs references to reliable sources from August 2009" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed">citation needed</a></i>]</sup> features making it more functional. Google search consists of a series of localized websites. The largest of those, the google.com site, is the top most-visited website in the world.<sup id="cite_ref-12" class="reference"><a href="#cite_note-12"><span>[</span>13<span>]</span></a></sup> Some of its features include a definition link for most searches including dictionary words, the number of results you got on your search, links to other searches (e.g. for words that Google believes to be misspelled, it provides a link to the search results using its proposed spelling), and many more.</p>
<h3><span class="mw-headline" id="Search_syntax">Search syntax</span></h3>
<p>Google's search engine normally accepts queries as a simple text, and breaks up the user's text into a sequence of search terms, which will usually be words that are to occur in the results, but may also be phrases, delimited by quotations marks ("), qualified terms, with a prefix such as "+", "-", or one of several advanced operators, such as "site:". The webpages of "<a href="http://www.google.com/support/websearch/bin/answer.py?answer=136861" class="external text" rel="nofollow">Google Search Basics</a>" describe each of these additional queries and options (<i>see below:</i> <a href="#Search_options">Search options</a>).</p>
<p>Google's Advanced Search web form gives several additional fields which may be used to qualify searches by such criteria as date of first retrieval. All advanced queries transform to regular queries, usually with additional qualified terms.</p>
<h3><span class="mw-headline" id="Query_expansion">Query expansion</span></h3>
<p>Google applies <a href="/wiki/Query_expansion" title="Query expansion">query expansion</a> to the submitted search query, transforming it into the query that will actually be used to retrieve results. As with page ranking, the exact details of the algorithm Google uses are deliberately obscure, but certainly the following transformations are among those that occur:</p>
<ul>
<li>Term reordering: in <a href="/wiki/Information_retrieval" title="Information retrieval">information retrieval</a> this is a standard technique to reduce the work involved in retrieving results. This transformation is invisible to the user, since the results ordering uses the original query order to determine relevance.</li>
<li><a href="/wiki/Stemming" title="Stemming">Stemming</a> is used to increase search quality by keeping small syntactic variants of search terms.<sup id="cite_ref-13" class="reference"><a href="#cite_note-13"><span>[</span>14<span>]</span></a></sup></li>
<li>There is a limited facility to fix possible misspellings in queries.</li>
</ul>
<h3><span class="mw-headline" id=".22I.27m_Feeling_Lucky.22">"I'm Feeling Lucky"</span></h3>
<p>Google's homepage includes a button labeled "I'm Feeling Lucky". When a user clicks on the button the user will be taken directly to the first search result, bypassing the <a href="/wiki/Search_engine_results_page" title="Search engine results page">search engine results page</a>. The thought is that if a user is "feeling lucky", the search engine will return the perfect match the first time without having to page through the search results. According to a study by Tom Chavez of "Rapt", this feature costs Google $110 million a year as 1% of all searches use this feature and bypass all advertising.<sup id="cite_ref-I.27m_feeling_lucky_14-0" class="reference"><a href="#cite_note-I.27m_feeling_lucky-14"><span>[</span>15<span>]</span></a></sup></p>
<p>On October 30, 2009, for some users, the "I'm Feeling Lucky" button was removed from Google's main page, along with the regular search button. Both buttons were replaced with a field that reads, "This space intentionally left blank." This text fades out when the mouse is moved on the page, and normal search functionality is achieved by filling in the search field with the desired terms and pressing enter. A Google spokesperson explains, "This is just a test, and a way for us to gauge whether our users will like an even simpler search interface."<sup id="cite_ref-15" class="reference"><a href="#cite_note-15"><span>[</span>16<span>]</span></a></sup> Personalized Google homepages retained both buttons and their normal functions.</p>
<h3><span class="mw-headline" id="Rich_Snippets">Rich Snippets</span></h3>
<p>On 12 May 2009, Google announced that they would be parsing the <a href="/wiki/HCard" title="HCard">hCard</a>, <a href="/wiki/HReview" title="HReview">hReview</a>, and <a href="/wiki/HProduct" title="HProduct">hProduct</a> <a href="/wiki/Microformat" title="Microformat">microformats</a> and using them to populate search result pages with what they called "Rich Snippets".<sup id="cite_ref-Rich-Snippets_16-0" class="reference"><a href="#cite_note-Rich-Snippets-16"><span>[</span>17<span>]</span></a></sup></p>
<h3><span class="mw-headline" id="Special_features">Special features<span id="Search_engine_features"></span></span></h3>
<p>Besides the main search-engine feature of searching for text, Google Search has more than 22 "special features" (activated by entering any of dozens of <i>trigger words</i>) when searching:<sup id="cite_ref-fea_5-2" class="reference"><a href="#cite_note-fea-5"><span>[</span>6<span>]</span></a></sup><sup id="cite_ref-EmU_17-0" class="reference"><a href="#cite_note-EmU-17"><span>[</span>18<span>]</span></a></sup></p>
<ul>
<li>weather – The weather conditions, temperature, wind, humidity, and forecast,<sup id="cite_ref-fea_5-3" class="reference"><a href="#cite_note-fea-5"><span>[</span>6<span>]</span></a></sup> for many cities, can be viewed by typing "weather" along with a city for larger cities or city and state, U.S. zip code, or city and country for smaller cities (such as: weather <a href="/wiki/Lawrence,_Kansas" title="Lawrence, Kansas">Lawrence, Kansas</a>; weather <a href="/wiki/Paris,_France" title="Paris, France" class="mw-redirect">Paris</a>; weather <a href="/wiki/Bremen,_Germany" title="Bremen, Germany" class="mw-redirect">Bremen, Germany</a>).</li>
<li>stock quotes – The market data<sup id="cite_ref-fea_5-4" class="reference"><a href="#cite_note-fea-5"><span>[</span>6<span>]</span></a></sup> for a specific company or fund can be viewed, by typing the <a href="/wiki/Ticker_symbol" title="Ticker symbol">ticker symbol</a> (or include "stock"), such as: <a href="/wiki/CSCO" title="CSCO">CSCO</a>; <a href="/wiki/MSFT" title="MSFT" class="mw-redirect">MSFT</a>; IBM stock; F stock (lists <a href="/wiki/Ford_Motor_Company" title="Ford Motor Company">Ford Motor Co.</a>); or AIVSX (fund). Results show inter-day changes, or 5-year graph, etc. This does not work for stock names which are one letter long, such as Citigroup (C) or Macy's (M) (Ford being an exception), or are common words, such as Diamond Offshore (DO) or Majesco (COOL).</li>
<li>time – The current time in many cities (worldwide),<sup id="cite_ref-fea_5-5" class="reference"><a href="#cite_note-fea-5"><span>[</span>6<span>]</span></a></sup> can be viewed by typing "time" and the name of the city (such as: time Cairo; time <a href="/wiki/Pratt,_KS" title="Pratt, KS" class="mw-redirect">Pratt, KS</a>).</li>
<li>sports scores – The scores and schedules, for sports teams,<sup id="cite_ref-fea_5-6" class="reference"><a href="#cite_note-fea-5"><span>[</span>6<span>]</span></a></sup> can be displayed by typing the team name or league name into the search box.</li>
<li>unit conversion – Measurements can be converted,<sup id="cite_ref-fea_5-7" class="reference"><a href="#cite_note-fea-5"><span>[</span>6<span>]</span></a></sup> by entering each phrase, such as: 10.5&#160;cm in inches; or 90&#160;km in miles</li>
<li>currency conversion – A money or currency converter can be selected,<sup id="cite_ref-fea_5-8" class="reference"><a href="#cite_note-fea-5"><span>[</span>6<span>]</span></a></sup> by typing the names or <a href="/wiki/Currency_codes" title="Currency codes" class="mw-redirect">currency codes</a> (listed by <a href="/wiki/ISO_4217" title="ISO 4217">ISO 4217</a>): 6789 <a href="/wiki/Euro" title="Euro">Euro</a> in <a href="/wiki/USD" title="USD" class="mw-redirect">USD</a>; 150 <a href="/wiki/GBP" title="GBP" class="mw-redirect">GBP</a> in USD; 5000 <a href="/wiki/Yen" title="Yen" class="mw-redirect">Yen</a> in USD; 5000 <a href="/wiki/Yuan" title="Yuan">Yuan</a> in <a href="/wiki/Lira" title="Lira">lira</a> (the U.S. dollar can be <i>USD</i> or "US$" or "$", while Canadian is <i>CAD</i>, etc.).</li>
<li><span id="calculator"></span>calculator – <a href="/wiki/Calculation" title="Calculation">Calculation</a> results can be determined,<sup id="cite_ref-fea_5-9" class="reference"><a href="#cite_note-fea-5"><span>[</span>6<span>]</span></a></sup> as calculated live, by entering a formula in numbers or words, such as: 6*77 +pi +sqrt(e^3)/888 plus 0.45. The user is given the option to search for the formula, after calculation. The calculator also uses the unit and currency conversion functions to allow unit-aware calculations. For example, "(3 EUR/liter) / (40 miles/gallon) in USD / mile" calculates the dollar cost per mile for a 40 mpg car with gas costing 3 euros a liter.</li>
<li>dictionary lookup – A definition for a word or phrase can be found,<sup id="cite_ref-fea_5-10" class="reference"><a href="#cite_note-fea-5"><span>[</span>6<span>]</span></a></sup> by entering "define" plus the word(s) to lookup (such as: Define philosophy)</li>
<li>maps – Some related maps can be displayed,<sup id="cite_ref-fea_5-11" class="reference"><a href="#cite_note-fea-5"><span>[</span>6<span>]</span></a></sup> by typing in the name or U.S. <a href="/wiki/ZIP_code" title="ZIP code">ZIP code</a> of a location and the word "map" (such as: New York map; Kansas map; or Paris map).</li>
<li>movie showtimes – Reviews or <a href="/wiki/Film" title="Film">film</a> showtimes can be listed for any movies playing nearby,<sup id="cite_ref-fea_5-12" class="reference"><a href="#cite_note-fea-5"><span>[</span>6<span>]</span></a></sup> by typing "movies" or the name of any current film into the search box. If a specific location was saved on a previous search, the top search result will display showtimes for nearby theaters for that movie. These listings however are sometimes totally incorrect and there is no way to ask Google to correct them; for example, on 25 July, for the <a href="/wiki/El_Capitan_Theatre" title="El Capitan Theatre">El Capitan Theatre</a>, google showtimes lists <a href="/wiki/Up_(2009_film)" title="Up (2009 film)">Up</a> but according to the El Capitan website, the only movie playing that day is <a href="/wiki/G-Force_(film)" title="G-Force (film)">G-Force</a>.<sup class="Template-Fact" title="This claim needs references to reliable sources from March 2010" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed">citation needed</a></i>]</sup></li>
<li>public data – Trends for population (or unemployment rates)<sup id="cite_ref-fea_5-13" class="reference"><a href="#cite_note-fea-5"><span>[</span>6<span>]</span></a></sup> can be found for U.S. states &amp; counties, by typing "population" or "unemployment rate" followed by a state or county name.</li>
<li>real estate and housing – Home listings in a given area can be displayed,<sup id="cite_ref-fea_5-14" class="reference"><a href="#cite_note-fea-5"><span>[</span>6<span>]</span></a></sup> using the trigger words "housing", "home", or "real estate" followed by the name of a city or U.S. zip code.</li>
<li>travel data/airports – The flight status for arriving or departing U.S. flights can be displayed,<sup id="cite_ref-fea_5-15" class="reference"><a href="#cite_note-fea-5"><span>[</span>6<span>]</span></a></sup> by typing in the name of the <a href="/wiki/Airline" title="Airline">airline</a> and the flight number into the search box (such as: <a href="/wiki/American_Airlines" title="American Airlines">American airlines</a> 18). Delays at a specific airport can also be viewed (by typing the name of the city or three-letter airport code plus word "airport").</li>
<li>package tracking – Package mail can be tracked<sup id="cite_ref-fea_5-16" class="reference"><a href="#cite_note-fea-5"><span>[</span>6<span>]</span></a></sup> by typing the tracking number of a <a href="/wiki/Royal_Mail" title="Royal Mail">Royal Mail</a>, <a href="/wiki/UPS" title="UPS">UPS</a>, <a href="/wiki/Fedex" title="Fedex" class="mw-redirect">Fedex</a> or <a href="/wiki/United_States_Postal_Service" title="United States Postal Service">USPS</a> package directly into the search box. Results will include quick links to track the status of each shipment.</li>
<li>patent numbers – U.S. <a href="/wiki/Patents" title="Patents" class="mw-redirect">patents</a> can be searched<sup id="cite_ref-fea_5-17" class="reference"><a href="#cite_note-fea-5"><span>[</span>6<span>]</span></a></sup><sup id="cite_ref-EmU_17-1" class="reference"><a href="#cite_note-EmU-17"><span>[</span>18<span>]</span></a></sup> by entering the word "patent" followed by the patent number into the search box (such as: Patent 5123123).</li>
<li>area code – The geographical location (for any U.S. telephone <a href="/wiki/Area_code" title="Area code" class="mw-redirect">area code</a>)<sup id="cite_ref-fea_5-18" class="reference"><a href="#cite_note-fea-5"><span>[</span>6<span>]</span></a></sup> can be displayed by typing a 3-digit area code (such as: 650).</li>
<li>synonym search – A search can match words similar to those specified,<sup id="cite_ref-fea_5-19" class="reference"><a href="#cite_note-fea-5"><span>[</span>6<span>]</span></a></sup> by placing the tilde sign (~) immediately in front of a search term, such as:&#160; ~fast food.</li>
<li>U.S. Government search – Searching of <a href="/wiki/U.S._government" title="U.S. government" class="mw-redirect">U.S. government</a> websites can be performed from webpage: www.google.com/unclesam.<sup id="cite_ref-EmU_17-2" class="reference"><a href="#cite_note-EmU-17"><span>[</span>18<span>]</span></a></sup></li>
</ul>
<h3><span class="mw-headline" id="Search_options">Search options</span></h3>
<p>The webpages maintained by the Google Help Center have text describing more than 15 various search options.<sup id="cite_ref-GH_18-0" class="reference"><a href="#cite_note-GH-18"><span>[</span>19<span>]</span></a></sup> The Google operators:</p>
<ul>
<li>OR – Search for either one, such as "price high OR low" searches for <i>"price"</i> with <i>"high"</i> or <i>"low"</i>.</li>
<li>"-" – Search while excluding a word, such as "apple -tree" searches where word <i>"tree"</i> is not used.</li>
<li>"+" – Force inclusion of a word, such as "Name +of +the Game" to require the words <i>"of"</i> &amp; <i>"the"</i> to appear on a matching page.</li>
<li>"*" – Wildcard operator to match any words between other specific words.</li>
</ul>
<p>Some of the query options are as follows:</p>
<ul>
<li>define: – The query prefix "define:" will provide a definition<sup id="cite_ref-GH_18-1" class="reference"><a href="#cite_note-GH-18"><span>[</span>19<span>]</span></a></sup> of the words listed after it.</li>
<li>stocks: – After "stocks:" the query terms are treated as stock ticker symbols<sup id="cite_ref-GH_18-2" class="reference"><a href="#cite_note-GH-18"><span>[</span>19<span>]</span></a></sup> for lookup.</li>
<li>site: – Restrict the results to those websites in the given domain,<sup id="cite_ref-GH_18-3" class="reference"><a href="#cite_note-GH-18"><span>[</span>19<span>]</span></a></sup> such as, site:www.acmeacme.com. The option "site:com" will search all domain URLs named with ".com" (no space after "site:").</li>
<li>allintitle: – Only the page titles are searched<sup id="cite_ref-GH_18-4" class="reference"><a href="#cite_note-GH-18"><span>[</span>19<span>]</span></a></sup> (not the remaining text on each webpage).</li>
<li>intitle: – Prefix to search in a webpage title,<sup id="cite_ref-GH_18-5" class="reference"><a href="#cite_note-GH-18"><span>[</span>19<span>]</span></a></sup> such as "intitle:google search" will list pages with word "google" in title, and word "search" anywhere (no space after "intitle:").</li>
<li>allinurl: – Only the page URL address lines are searched<sup id="cite_ref-GH_18-6" class="reference"><a href="#cite_note-GH-18"><span>[</span>19<span>]</span></a></sup> (not the text inside each webpage).</li>
<li>inurl: – Prefix for each word to be found in the URL;<sup id="cite_ref-GH_18-7" class="reference"><a href="#cite_note-GH-18"><span>[</span>19<span>]</span></a></sup> others words are matched anywhere, such as "inurl:acme search" matches "acme" in a URL, but matches "search" anywhere (no space after "inurl:").</li>
</ul>
<p>The page-display options (or query types) are:</p>
<ul>
<li>cache: – Highlights the search-words within the cached document, such as "cache:www.google.com xxx" shows cached content with word "xxx" highlighted.</li>
<li>link: – The prefix "link:" will list webpages that have links to the specified webpage, such as "link:www.google.com" lists webpages linking to the Google homepage.</li>
<li>related: – The prefix "related:" will list webpages that are "similar" to a specified web page.</li>
<li>info: – The prefix "info:" will display some background information about one specified webpage, such as, info:www.google.com. Typically, the info is the first text (160 bytes, about 23 words) contained in the page, displayed in the style of a results entry (for just the 1 page as matching the search).</li>
<li>filetype: - results will only show files of the desired type (ex filetype:pdf will return pdf files)</li>
</ul>
<p>Note that Google searches the HTML coding inside a webpage, not the screen appearance: the words displayed on a screen might not be listed in the same order in the HTML coding.</p>
<h3><span class="mw-headline" id="Error_messages">Error messages</span></h3>
<p>Some searches will give a 403 Forbidden error with the text</p>
<blockquote>
<p>"We're sorry... ... but your query looks similar to automated requests from a computer virus or spyware application. To protect our users, we can't process your request right now. We'll restore your access as quickly as possible, so try again soon. In the meantime, if you suspect that your computer or network has been infected, you might want to run a virus checker or spyware remover to make sure that your systems are free of viruses and other spurious software. We apologize for the inconvenience, and hope we'll see you again on Google."</p>
</blockquote>
<p>sometimes followed by a <a href="/wiki/CAPTCHA" title="CAPTCHA">CAPTCHA</a> prompt.<sup id="cite_ref-Google_error_page_19-0" class="reference"><a href="#cite_note-Google_error_page-19"><span>[</span>20<span>]</span></a></sup></p>
<p>The screen was first reported in 2005, and was a response to the heavy use of Google by <a href="/wiki/Search_engine_optimization" title="Search engine optimization">search engine optimization</a> companies to check on ranks of sites they were optimizing. The message is triggered by high volumes of requests from a single IP address. Google apparently uses the <a href="/wiki/Criticism_of_Google#Privacy" title="Criticism of Google">Google cookie</a> as part of its determination of refusing service.<sup id="cite_ref-Google_error_page_19-1" class="reference"><a href="#cite_note-Google_error_page-19"><span>[</span>20<span>]</span></a></sup></p>
<p>In June 2009, after the death of pop superstar <a href="/wiki/Michael_Jackson" title="Michael Jackson">Michael Jackson</a>, this message appeared to many internet users who were searching Google for news stories related to the singer, and was assumed by Google to be a <a href="/wiki/DDoS_attack" title="DDoS attack" class="mw-redirect">DDoS attack</a>, although many queries were legitimate searchers.</p>
<h4><span class="mw-headline" id="January_2009_malware_bug">January 2009 malware bug</span></h4>
<div class="thumb tright">
<div class="thumbinner" style="width:222px;"><a href="/wiki/File:Malware.png" class="image"><img alt="" src="http://upload.wikimedia.org/wikipedia/en/thumb/2/2e/Malware.png/220px-Malware.png" width="220" height="176" class="thumbimage" /></a>
<div class="thumbcaption">
<div class="magnify"><a href="/wiki/File:Malware.png" class="internal" title="Enlarge"><img src="http://bits.wikimedia.org/skins-1.5/common/images/magnify-clip.png" width="15" height="11" alt="" /></a></div>
A screen-shot of the error of January 31, 2009</div>
</div>
</div>
<p>Google flags search results with the message "This site may harm your computer" if the site is known to install malicious software in the background or otherwise surreptitiously. Google does this to protect users against visiting sites that could harm their computers. For approximately 40 minutes on January 31, 2009, <i>all</i> search results were mistakenly classified as <a href="/wiki/Malware" title="Malware">malware</a> and could therefore not be clicked; instead a warning message was displayed and the user was required to enter the requested URL manually. The bug was caused by human error.<sup id="cite_ref-20" class="reference"><a href="#cite_note-20"><span>[</span>21<span>]</span></a></sup><sup id="cite_ref-googleblog_21-0" class="reference"><a href="#cite_note-googleblog-21"><span>[</span>22<span>]</span></a></sup> The <a href="/wiki/URL" title="URL" class="mw-redirect">URL</a> of "/" (which expands to all URLs) was mistakenly checked in as a value to the file.<sup id="cite_ref-googleblog_21-1" class="reference"><a href="#cite_note-googleblog-21"><span>[</span>22<span>]</span></a></sup></p>
<h3><span class="mw-headline" id="Google_Doodle">Google Doodle</span></h3>
<div class="rellink relarticle mainarticle">Main article: <a href="/wiki/Google_logo" title="Google logo">Google logo</a></div>
<p>On certain occasions, the <a href="/wiki/Google_logo" title="Google logo">logo</a> on Google's webpage will change to a special version, known as a "Google Doodle". Clicking on the Doodle links to a string of Google search results about the topic. The first was a reference to the <a href="/wiki/Burning_Man_Festival" title="Burning Man Festival" class="mw-redirect">Burning Man Festival</a> in 1998,<sup id="cite_ref-22" class="reference"><a href="#cite_note-22"><span>[</span>23<span>]</span></a></sup> and others have been produced for the birthdays of notable people like <a href="/wiki/Albert_Einstein" title="Albert Einstein">Albert Einstein</a>, historical events like the interlocking <a href="/wiki/Lego" title="Lego">Lego</a> block's 50th anniversary and holidays like <a href="/wiki/Valentine%27s_Day" title="Valentine's Day">Valentine's Day</a>.<sup id="cite_ref-23" class="reference"><a href="#cite_note-23"><span>[</span>24<span>]</span></a></sup></p>
<h3><span class="mw-headline" id="Google_Caffeine">Google Caffeine</span></h3>
<p>In August 2009, Google announced the rollout of a new search architecture, codenamed "Caffeine".<sup id="cite_ref-Harvey_24-0" class="reference"><a href="#cite_note-Harvey-24"><span>[</span>25<span>]</span></a></sup> The new architecture was designed to return results faster and to better deal with rapidly updated information from services including <a href="/wiki/Facebook" title="Facebook">Facebook</a> and <a href="/wiki/Twitter" title="Twitter">Twitter</a>.<sup id="cite_ref-Harvey_24-1" class="reference"><a href="#cite_note-Harvey-24"><span>[</span>25<span>]</span></a></sup> Google developers noted that most users would notice little immediate change, but invited developers to test the new search in its <a href="/wiki/Sandbox_(computer_security)" title="Sandbox (computer security)">sandbox</a>.<sup id="cite_ref-25" class="reference"><a href="#cite_note-25"><span>[</span>26<span>]</span></a></sup> One change that was noticeable was the search return time. In numerous tests it returned results in nearly half the time.<sup id="cite_ref-26" class="reference"><a href="#cite_note-26"><span>[</span>27<span>]</span></a></sup> Other differences noted for their impact upon <a href="/wiki/Search_Engine_Optimization" title="Search Engine Optimization" class="mw-redirect">Search Engine Optimization</a> included heavier keyword weighting and the importance of the domain's age.<sup id="cite_ref-Martin_27-0" class="reference"><a href="#cite_note-Martin-27"><span>[</span>28<span>]</span></a></sup><sup id="cite_ref-Paul_28-0" class="reference"><a href="#cite_note-Paul-28"><span>[</span>29<span>]</span></a></sup> The move was interpreted in some quarters as a response to Microsoft's recent release of an upgraded version of its own search service, renamed <a href="/wiki/Bing_(search_engine)" title="Bing (search engine)">Bing</a>.<sup id="cite_ref-29" class="reference"><a href="#cite_note-29"><span>[</span>30<span>]</span></a></sup></p>
<h2><span class="mw-headline" id="International">International</span></h2>
<p>Google is available in many languages and has been localized for many countries.<sup id="cite_ref-international_30-0" class="reference"><a href="#cite_note-international-30"><span>[</span>31<span>]</span></a></sup></p>
<h3><span class="mw-headline" id="Languages">Languages</span></h3>
<table cellspacing="0" cellpadding="0" class="multicol" style="background:transparent; width:100%;">
<tr>
<td align="left" valign="top">
<ul>
<li><a href="/wiki/Afrikaans" title="Afrikaans">Afrikaans</a></li>
<li><a href="/wiki/Akan_language" title="Akan language">Akan</a></li>
<li><a href="/wiki/Albanian_language" title="Albanian language">Albanian</a></li>
<li><a href="/wiki/Amharic" title="Amharic">Amharic</a></li>
<li><a href="/wiki/Arabic" title="Arabic" class="mw-redirect">Arabic</a></li>
<li><a href="/wiki/Armenian_language" title="Armenian language">Armenian</a></li>
<li><a href="/wiki/Azerbaijani_language" title="Azerbaijani language">Azerbaijani</a></li>
<li><a href="/wiki/Basque_language" title="Basque language">Basque</a></li>
<li><a href="/wiki/Belarusian_language" title="Belarusian language">Belarusian</a></li>
<li><a href="/wiki/Bengali_language" title="Bengali language">Bengali</a></li>
<li><a href="/wiki/Bihari_languages" title="Bihari languages">Bihari</a></li>
<li><a href="/wiki/Bosnian_language" title="Bosnian language">Bosnian</a></li>
<li><a href="/wiki/Breton_language" title="Breton language">Breton</a></li>
<li><a href="/wiki/Bulgarian_language" title="Bulgarian language">Bulgarian</a></li>
<li><a href="/wiki/Cambodian_language" title="Cambodian language" class="mw-redirect">Cambodian (Khmer)</a></li>
<li><a href="/wiki/Catalan_language" title="Catalan language">Catalan</a></li>
<li><a href="/wiki/Chinese_(Simplified)" title="Chinese (Simplified)" class="mw-redirect">Chinese (Simplified)</a></li>
<li><a href="/wiki/Chinese_(Traditional)" title="Chinese (Traditional)" class="mw-redirect">Chinese (Traditional)</a></li>
<li><a href="/wiki/Corsican_language" title="Corsican language">Corsican</a></li>
<li><a href="/wiki/Croatian_language" title="Croatian language">Croatian</a></li>
<li><a href="/wiki/Czech_language" title="Czech language">Czech</a></li>
</ul>
</td>
<td align="left" valign="top">
<ul>
<li><a href="/wiki/Danish_language" title="Danish language">Danish</a></li>
<li><a href="/wiki/Dutch_language" title="Dutch language">Dutch</a></li>
<li><a href="/wiki/English_language" title="English language">English</a> (United Kingdom)</li>
<li><a href="/wiki/English_language" title="English language">English</a> (United States)</li>
<li><a href="/wiki/Esperanto" title="Esperanto">Esperanto</a></li>
<li><a href="/wiki/Estonian_language" title="Estonian language">Estonian</a></li>
<li><a href="/wiki/Faroese_language" title="Faroese language">Faroese</a></li>
<li><a href="/wiki/Filipino_language" title="Filipino language">Filipino</a></li>
<li><a href="/wiki/Finnish_language" title="Finnish language">Finnish</a></li>
<li><a href="/wiki/French_language" title="French language">French</a></li>
<li><a href="/wiki/West_Frisian_language" title="West Frisian language">Frisian (West)</a></li>
<li><a href="/wiki/Galician_language" title="Galician language">Galician</a></li>
<li><a href="/wiki/Georgian_language" title="Georgian language">Georgian</a></li>
<li><a href="/wiki/German_language" title="German language">German</a></li>
<li><a href="/wiki/Greek_language" title="Greek language">Greek</a></li>
<li><a href="/wiki/Guarani_language" title="Guarani language" class="mw-redirect">Guarani</a></li>
<li><a href="/wiki/Gujarati_language" title="Gujarati language">Gujarati</a></li>
<li><a href="/wiki/Hausa_language" title="Hausa language">Hausa</a></li>
<li><a href="/wiki/Hawaiian_language" title="Hawaiian language">Hawaiian</a></li>
<li><a href="/wiki/Hebrew_language" title="Hebrew language">Hebrew</a></li>
<li><a href="/wiki/Hindi" title="Hindi">Hindi</a></li>
</ul>
</td>
<td align="left" valign="top">
<ul>
<li><a href="/wiki/Hungarian_language" title="Hungarian language">Hungarian</a></li>
<li><a href="/wiki/Icelandic_language" title="Icelandic language">Icelandic</a></li>
<li><a href="/wiki/Igbo_language" title="Igbo language">Igbo</a></li>
<li><a href="/wiki/Indonesian_language" title="Indonesian language">Indonesian</a></li>
<li><a href="/wiki/Interlingua" title="Interlingua">Interlingua</a></li>
<li><a href="/wiki/Irish_language" title="Irish language">Irish</a></li>
<li><a href="/wiki/Italian_language" title="Italian language">Italian</a></li>
<li><a href="/wiki/Japanese_language" title="Japanese language">Japanese</a></li>
<li><a href="/wiki/Javanese_language" title="Javanese language">Javanese</a></li>
<li><a href="/wiki/Kannada_language" title="Kannada language">Kannada</a></li>
<li><a href="/wiki/Kazakh_language" title="Kazakh language">Kazakh</a></li>
<li><a href="/wiki/Kinyarwanda_language" title="Kinyarwanda language" class="mw-redirect">Kinyarwanda</a></li>
<li><a href="/wiki/Kirundi_language" title="Kirundi language" class="mw-redirect">Kirundi</a></li>
<li><a href="/wiki/Korean_language" title="Korean language">Korean</a></li>
<li><a href="/wiki/Kurdish_language" title="Kurdish language">Kurdish</a></li>
<li><a href="/wiki/Kyrgyz_language" title="Kyrgyz language">Kyrgyz</a></li>
<li><a href="/wiki/Laothian" title="Laothian" class="mw-redirect">Laothian</a></li>
<li><a href="/wiki/Latin" title="Latin">Latin</a></li>
<li><a href="/wiki/Latvian_language" title="Latvian language">Latvian</a></li>
<li><a href="/wiki/Lingala" title="Lingala" class="mw-redirect">Lingala</a></li>
<li><a href="/wiki/Lithuanian_language" title="Lithuanian language">Lithuanian</a></li>
</ul>
</td>
<td align="left" valign="top">
<ul>
<li><a href="/wiki/Luganda" title="Luganda" class="mw-redirect">Luganda</a></li>
<li><a href="/wiki/Macedonian_language" title="Macedonian language">Macedonian</a></li>
<li><a href="/wiki/Malagasy_language" title="Malagasy language">Malagasy</a></li>
<li><a href="/wiki/Malay_language" title="Malay language">Malay</a></li>
<li><a href="/wiki/Malayalam" title="Malayalam">Malayalam</a></li>
<li><a href="/wiki/Maltese_language" title="Maltese language">Maltese</a></li>
<li><a href="/wiki/M%C4%81ori_language" title="Māori language">Māori</a></li>
<li><a href="/wiki/Marathi" title="Marathi" class="mw-redirect">Marathi</a></li>
<li><a href="/wiki/Mauritian_Creole" title="Mauritian Creole">Mauritian Creole</a></li>
<li><a href="/wiki/Moldavian_language" title="Moldavian language" class="mw-redirect">Moldavian (Romanian)</a></li>
<li><a href="/wiki/Mongolian_language" title="Mongolian language">Mongolian</a></li>
<li><a href="/wiki/Montenegrin_language" title="Montenegrin language">Montenegrin</a></li>
<li><a href="/wiki/Nepali_language" title="Nepali language">Nepali</a></li>
<li><a href="/wiki/Norwegian_language" title="Norwegian language">Norwegian</a></li>
<li><a href="/wiki/Norwegian_(Nynorsk)" title="Norwegian (Nynorsk)" class="mw-redirect">Norwegian (Nynorsk)</a></li>
<li><a href="/wiki/Occitan" title="Occitan" class="mw-redirect">Occitan</a></li>
<li><a href="/wiki/Oriya_language" title="Oriya language">Oriya</a></li>
<li><a href="/wiki/Oromo_language" title="Oromo language">Oromo</a></li>
<li><a href="/wiki/Pashto_language" title="Pashto language">Pashto</a></li>
<li><a href="/wiki/Persian_language" title="Persian language">Persian</a></li>
<li><a href="/wiki/Polish_language" title="Polish language">Polish</a></li>
</ul>
</td>
<td align="left" valign="top">
<ul>
<li><a href="/wiki/Portuguese_(Brazil)" title="Portuguese (Brazil)" class="mw-redirect">Portuguese (Brazil)</a></li>
<li><a href="/wiki/Portuguese_(Portugal)" title="Portuguese (Portugal)" class="mw-redirect">Portuguese (Portugal)</a></li>
<li><a href="/wiki/Punjabi_language" title="Punjabi language">Punjabi</a></li>
<li><a href="/wiki/Quechua" title="Quechua">Quechua</a></li>
<li><a href="/wiki/Romanian_language" title="Romanian language">Romanian</a></li>
<li><a href="/wiki/Romansh_language" title="Romansh language">Romansh</a></li>
<li><a href="/wiki/Russian_language" title="Russian language">Russian</a></li>
<li><a href="/wiki/Scots_Gaelic" title="Scots Gaelic" class="mw-redirect">Scots Gaelic</a></li>
<li><a href="/wiki/Serbian_language" title="Serbian language">Serbian</a></li>
<li><a href="/wiki/Serbo-Croatian" title="Serbo-Croatian" class="mw-redirect">Serbo-Croatian</a></li>
<li><a href="/wiki/Sesotho" title="Sesotho" class="mw-redirect">Sesotho</a></li>
<li><a href="/wiki/Shona_language" title="Shona language">Shona</a></li>
<li><a href="/wiki/Sindhi_language" title="Sindhi language">Sindhi</a></li>
<li><a href="/wiki/Sinhalese_language" title="Sinhalese language" class="mw-redirect">Sinhalese</a></li>
<li><a href="/wiki/Slovak_language" title="Slovak language">Slovak</a></li>
<li><a href="/wiki/Slovene_language" title="Slovene language">Slovene</a></li>
<li><a href="/wiki/Somali_language" title="Somali language">Somali</a></li>
<li><a href="/wiki/Spanish_language" title="Spanish language">Spanish</a></li>
<li><a href="/wiki/Sundanese_language" title="Sundanese language">Sundanese</a></li>
<li><a href="/wiki/Swahili_language" title="Swahili language">Swahili</a></li>
<li><a href="/wiki/Swedish_language" title="Swedish language">Swedish</a></li>
</ul>
</td>
<td align="left" valign="top">
<ul>
<li><a href="/wiki/Tajik_language" title="Tajik language">Tajik</a></li>
<li><a href="/wiki/Tamil_language" title="Tamil language">Tamil</a></li>
<li><a href="/wiki/Tatar_language" title="Tatar language">Tatar</a></li>
<li><a href="/wiki/Telugu" title="Telugu" class="mw-redirect">Telugu</a></li>
<li><a href="/wiki/Thai_language" title="Thai language">Thai</a></li>
<li><a href="/wiki/Tigrinya" title="Tigrinya" class="mw-redirect">Tigrinya</a></li>
<li><a href="/wiki/Tonga_language" title="Tonga language">Tonga</a></li>
<li><a href="/wiki/Turkish_language" title="Turkish language">Turkish</a></li>
<li><a href="/wiki/Turkmen_language" title="Turkmen language">Turkmen</a></li>
<li><a href="/wiki/Twi" title="Twi">Twi</a></li>
<li><a href="/wiki/Uighur_language" title="Uighur language" class="mw-redirect">Uighur</a></li>
<li><a href="/wiki/Ukrainian_language" title="Ukrainian language">Ukrainian</a></li>
<li><a href="/wiki/Urdu" title="Urdu">Urdu</a></li>
<li><a href="/wiki/Uzbek_language" title="Uzbek language">Uzbek</a></li>
<li><a href="/wiki/Vietnamese_language" title="Vietnamese language">Vietnamese</a></li>
<li><a href="/wiki/Welsh_language" title="Welsh language">Welsh</a></li>
<li><a href="/wiki/Xhosa_language" title="Xhosa language">Xhosa</a></li>
<li><a href="/wiki/Yiddish" title="Yiddish" class="mw-redirect">Yiddish</a></li>
<li><a href="/wiki/Yoruba_language" title="Yoruba language">Yoruba</a></li>
<li><a href="/wiki/Zulu_language" title="Zulu language">Zulu</a></li>
</ul>
</td>
</tr>
</table>
<p>The interface has also been made available in some languages for humorous purpose:</p>
<ul>
<li><a href="/wiki/Elmer_Fudd" title="Elmer Fudd">Elmer Fudd</a></li>
<li><a href="/wiki/Leetspeak" title="Leetspeak" class="mw-redirect">Hacker</a></li>
<li><a href="/wiki/Klingon_language" title="Klingon language">Klingon</a></li>
<li><a href="/wiki/Pig_Latin" title="Pig Latin">Pig Latin</a></li>
<li><a href="/wiki/Swedish_Chef" title="Swedish Chef">Bork, bork, bork!</a></li>
<li><a href="/wiki/Talk_like_a_pirate" title="Talk like a pirate" class="mw-redirect">Pirate</a></li>
</ul>
<h3><span class="mw-headline" id="Domain_names">Domain names</span></h3>
<p>In addition to the main URL <a href="http://www.google.com" class="external text" rel="nofollow">Google.com</a>, Google Inc. owns 160 domain names for each of the countries/regions in which it has been localized.<sup id="cite_ref-international_30-1" class="reference"><a href="#cite_note-international-30"><span>[</span>31<span>]</span></a></sup> As Google is an American company, the main domain name can be considered as the U.S. one. For a list of the current domain names, see page: {{<a href="/wiki/Template:Google.com" title="Template:Google.com">Google.com</a>}}.</p>
<p>Some domain names unregistered by Google are currently <a href="/wiki/Cybersquatting" title="Cybersquatting">squatted</a>, such as "Google.ua" (for Ukraine, where the correct URL is "google.com.ua").</p>
<h2><span class="mw-headline" id="Search_products">Search products</span></h2>
<div class="rellink relarticle mainarticle">Main article: <a href="/wiki/List_of_Google_products" title="List of Google products">List of Google products</a></div>
<p>In addition to its tool for searching <a href="/wiki/Webpage" title="Webpage" class="mw-redirect">webpages</a>, Google also provides services for searching <a href="/wiki/Raster_graphics" title="Raster graphics">images</a>, <a href="/wiki/Usenet" title="Usenet">Usenet</a> <a href="/wiki/Newsgroup" title="Newsgroup" class="mw-redirect">newsgroups</a>, news <a href="/wiki/Websites" title="Websites" class="mw-redirect">websites</a>, <a href="/wiki/Google_Video" title="Google Video" class="mw-redirect">videos</a>, searching by locality, maps, and items for sale online. In 2006, Google has indexed over 25 billion web pages,<sup id="cite_ref-gwcds_31-0" class="reference"><a href="#cite_note-gwcds-31"><span>[</span>32<span>]</span></a></sup> 400 million queries per day,<sup id="cite_ref-gwcds_31-1" class="reference"><a href="#cite_note-gwcds-31"><span>[</span>32<span>]</span></a></sup> 1.3 billion images, and over one billion Usenet messages. It also <a href="/wiki/Cache" title="Cache">caches</a> much of the content that it <a href="/wiki/Web_indexing" title="Web indexing">indexes</a>. Google operates other tools and services including <a href="/wiki/Google_News" title="Google News">Google News</a>, Google Suggest, <a href="/wiki/Google_Product_Search" title="Google Product Search">Google Product Search</a>, <a href="/wiki/Google_Maps" title="Google Maps">Google Maps</a>, <a href="/wiki/Google_Co-op" title="Google Co-op">Google Co-op</a>, <a href="/wiki/Google_Earth" title="Google Earth">Google Earth</a>, <a href="/wiki/Google_Blog" title="Google Blog" class="mw-redirect">Google Blog</a> Search and <a href="/wiki/Google_Desktop" title="Google Desktop">Google Desktop</a> Search.</p>
<p>There are also products available from Google that are not directly search-related. <a href="/wiki/Gmail" title="Gmail">Gmail</a>, for example, is a <a href="/wiki/Webmail" title="Webmail">webmail</a> application, but still includes search features; <a href="/wiki/Google_Browser_Sync" title="Google Browser Sync">Google Browser Sync</a> does not offer any search facilities, although it aims to organize your browsing time.</p>
<p>Also Google starts many new beta products, like <a href="/w/index.php?title=Google_Social_Search&amp;action=edit&amp;redlink=1" class="new" title="Google Social Search (page does not exist)">Google Social Search</a> or <a href="/wiki/Google_Image_Swirl" title="Google Image Swirl">Google Image Swirl</a>.</p>
<h2><span class="mw-headline" id="Energy_consumption">Energy consumption</span></h2>
<p>Google claims that a search query requires altogether about 1 <a href="/wiki/Joule" title="Joule">kJ</a> or 0.0003 <a href="/wiki/Kilowatt_hours" title="Kilowatt hours" class="mw-redirect">kW·h</a>.<sup id="cite_ref-32" class="reference"><a href="#cite_note-32"><span>[</span>33<span>]</span></a></sup></p>
<h2><span class="mw-headline" id="See_also">See also</span></h2>
<ul>
<li><a href="/wiki/Googlewhack" title="Googlewhack">Googlewhack</a></li>
<li><a href="/wiki/Goojje" title="Goojje">Goojje</a></li>
<li><a href="/wiki/History_of_Google" title="History of Google">History of Google</a></li>
<li><a href="/wiki/List_of_Google_products" title="List of Google products">List of Google products</a></li>
<li><a href="/wiki/List_of_search_engines" title="List of search engines">List of search engines</a></li>
</ul>
<h2><span class="mw-headline" id="References">References</span></h2>
<div class="references-small references-column-width" style="-moz-column-width:30em; column-width:30em;">
<ol class="references">
<li id="cite_note-0"><b><a href="#cite_ref-0">^</a></b> <span class="citation web"><a href="http://reports.internic.net/cgi/whois?whois_nic=google.com&amp;type=domain" class="external text" rel="nofollow">"WHOIS - google.com"</a><span class="printonly">. <a href="http://reports.internic.net/cgi/whois?whois_nic=google.com&amp;type=domain" class="external free" rel="nofollow">http://reports.internic.net/cgi/whois?whois_nic=google.com&amp;type=domain</a></span><span class="reference-accessdate">. Retrieved 2009-01-27</span>.</span><span class="Z3988" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=bookitem&amp;rft.btitle=WHOIS+-+google.com&amp;rft.atitle=&amp;rft_id=http%3A%2F%2Freports.internic.net%2Fcgi%2Fwhois%3Fwhois_nic%3Dgoogle.com%26type%3Ddomain&amp;rfr_id=info:sid/en.wikipedia.org:Google_search"><span style="display: none;">&#160;</span></span></li>
<li id="cite_note-1"><b><a href="#cite_ref-1">^</a></b> <span class="citation web"><a href="http://www.alexa.com/data/details/traffic_details/google.com" class="external text" rel="nofollow">"Alexa Google traffic results"</a>. <a href="/wiki/Alexa_Internet" title="Alexa Internet">Alexa</a><span class="printonly">. <a href="http://www.alexa.com/data/details/traffic_details/google.com" class="external free" rel="nofollow">http://www.alexa.com/data/details/traffic_details/google.com</a></span><span class="reference-accessdate">. Retrieved 2009-11-15</span>.</span><span class="Z3988" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=bookitem&amp;rft.btitle=Alexa+Google+traffic+results&amp;rft.atitle=&amp;rft.pub=%5B%5BAlexa+Internet%7CAlexa%5D%5D&amp;rft_id=http%3A%2F%2Fwww.alexa.com%2Fdata%2Fdetails%2Ftraffic_details%2Fgoogle.com&amp;rfr_id=info:sid/en.wikipedia.org:Google_search"><span style="display: none;">&#160;</span></span></li>
<li id="cite_note-2"><b><a href="#cite_ref-2">^</a></b> <span class="citation web"><a href="http://www.alexa.com/siteinfo/google.com+yahoo.com+altavista.com" class="external text" rel="nofollow">"Alexa Search Engine ranking"</a><span class="printonly">. <a href="http://www.alexa.com/siteinfo/google.com+yahoo.com+altavista.com" class="external free" rel="nofollow">http://www.alexa.com/siteinfo/google.com+yahoo.com+altavista.com</a></span><span class="reference-accessdate">. Retrieved 2009-11-15</span>.</span><span class="Z3988" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=bookitem&amp;rft.btitle=Alexa+Search+Engine+ranking&amp;rft.atitle=&amp;rft_id=http%3A%2F%2Fwww.alexa.com%2Fsiteinfo%2Fgoogle.com%2Byahoo.com%2Baltavista.com&amp;rfr_id=info:sid/en.wikipedia.org:Google_search"><span style="display: none;">&#160;</span></span></li>
<li id="cite_note-3"><b><a href="#cite_ref-3">^</a></b> <span class="citation web"><a href="http://searchenginewatch.com/showPage.html?page=3630718" class="external text" rel="nofollow">"Almost 12 Billion U.S. Searches Conducted in July"</a>. SearchEngineWatch. 2008-09-02<span class="printonly">. <a href="http://searchenginewatch.com/showPage.html?page=3630718" class="external free" rel="nofollow">http://searchenginewatch.com/showPage.html?page=3630718</a></span>.</span><span class="Z3988" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=bookitem&amp;rft.btitle=Almost+12+Billion+U.S.+Searches+Conducted+in+July&amp;rft.atitle=&amp;rft.date=2008-09-02&amp;rft.pub=SearchEngineWatch&amp;rft_id=http%3A%2F%2Fsearchenginewatch.com%2FshowPage.html%3Fpage%3D3630718&amp;rfr_id=info:sid/en.wikipedia.org:Google_search"><span style="display: none;">&#160;</span></span></li>
<li id="cite_note-4"><b><a href="#cite_ref-4">^</a></b> <span class="citation web"><a href="http://reports.internic.net/cgi/whois?whois_nic=google.com&amp;type=domain" class="external text" rel="nofollow">"WHOIS - google.com"</a><span class="printonly">. <a href="http://reports.internic.net/cgi/whois?whois_nic=google.com&amp;type=domain" class="external free" rel="nofollow">http://reports.internic.net/cgi/whois?whois_nic=google.com&amp;type=domain</a></span><span class="reference-accessdate">. Retrieved 2009-01-27</span>.</span><span class="Z3988" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=bookitem&amp;rft.btitle=WHOIS+-+google.com&amp;rft.atitle=&amp;rft_id=http%3A%2F%2Freports.internic.net%2Fcgi%2Fwhois%3Fwhois_nic%3Dgoogle.com%26type%3Ddomain&amp;rfr_id=info:sid/en.wikipedia.org:Google_search"><span style="display: none;">&#160;</span></span></li>
<li id="cite_note-fea-5">^ <a href="#cite_ref-fea_5-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-fea_5-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-fea_5-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-fea_5-3"><sup><i><b>d</b></i></sup></a> <a href="#cite_ref-fea_5-4"><sup><i><b>e</b></i></sup></a> <a href="#cite_ref-fea_5-5"><sup><i><b>f</b></i></sup></a> <a href="#cite_ref-fea_5-6"><sup><i><b>g</b></i></sup></a> <a href="#cite_ref-fea_5-7"><sup><i><b>h</b></i></sup></a> <a href="#cite_ref-fea_5-8"><sup><i><b>i</b></i></sup></a> <a href="#cite_ref-fea_5-9"><sup><i><b>j</b></i></sup></a> <a href="#cite_ref-fea_5-10"><sup><i><b>k</b></i></sup></a> <a href="#cite_ref-fea_5-11"><sup><i><b>l</b></i></sup></a> <a href="#cite_ref-fea_5-12"><sup><i><b>m</b></i></sup></a> <a href="#cite_ref-fea_5-13"><sup><i><b>n</b></i></sup></a> <a href="#cite_ref-fea_5-14"><sup><i><b>o</b></i></sup></a> <a href="#cite_ref-fea_5-15"><sup><i><b>p</b></i></sup></a> <a href="#cite_ref-fea_5-16"><sup><i><b>q</b></i></sup></a> <a href="#cite_ref-fea_5-17"><sup><i><b>r</b></i></sup></a> <a href="#cite_ref-fea_5-18"><sup><i><b>s</b></i></sup></a> <a href="#cite_ref-fea_5-19"><sup><i><b>t</b></i></sup></a> <span class="citation web"><a href="http://www.google.com/intl/en/help/features.html" class="external text" rel="nofollow">"Search Features"</a>. Google.com. May 2009<span class="printonly">. <a href="http://www.google.com/intl/en/help/features.html" class="external free" rel="nofollow">http://www.google.com/intl/en/help/features.html</a></span>.</span><span class="Z3988" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=bookitem&amp;rft.btitle=Search+Features&amp;rft.atitle=&amp;rft.date=May+2009&amp;rft.pub=Google.com&amp;rft_id=http%3A%2F%2Fwww.google.com%2Fintl%2Fen%2Fhelp%2Ffeatures.html&amp;rfr_id=info:sid/en.wikipedia.org:Google_search"><span style="display: none;">&#160;</span></span></li>
<li id="cite_note-6"><b><a href="#cite_ref-6">^</a></b> <a href="http://www.google.co.nz/support/websearch/bin/answer.py?answer=136861" class="external text" rel="nofollow"><i>...The *, or wildcard, is a little-known feature that can be very powerful...</i></a></li>
<li id="cite_note-brin-7"><b><a href="#cite_ref-brin_7-0">^</a></b> <span class="citation web">Sergey Brin and Lawrence Page (1998). <a href="http://infolab.stanford.edu/~backrub/google.html" class="external text" rel="nofollow">"The Anatomy of a Large-Scale Hypertextual Web Search Engine"</a>. <a href="/wiki/Stanford_University" title="Stanford University">Stanford University</a><span class="printonly">. <a href="http://infolab.stanford.edu/~backrub/google.html" class="external free" rel="nofollow">http://infolab.stanford.edu/~backrub/google.html</a></span><span class="reference-accessdate">. Retrieved 2009-11-15</span>.</span><span class="Z3988" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=bookitem&amp;rft.btitle=The+Anatomy+of+a+Large-Scale+Hypertextual+Web+Search+Engine&amp;rft.atitle=&amp;rft.aulast=Sergey+Brin+and+Lawrence+Page&amp;rft.au=Sergey+Brin+and+Lawrence+Page&amp;rft.date=1998&amp;rft.pub=%5B%5BStanford+University%5D%5D&amp;rft_id=http%3A%2F%2Finfolab.stanford.edu%2F%7Ebackrub%2Fgoogle.html&amp;rfr_id=info:sid/en.wikipedia.org:Google_search"><span style="display: none;">&#160;</span></span></li>
<li id="cite_note-8"><b><a href="#cite_ref-8">^</a></b> <span class="citation web"><a href="http://www.google.com/corporate/tech.html" class="external text" rel="nofollow">"Corporate Information: Technology Overview"</a>. <a href="/wiki/Google" title="Google">Google</a><span class="printonly">. <a href="http://www.google.com/corporate/tech.html" class="external free" rel="nofollow">http://www.google.com/corporate/tech.html</a></span><span class="reference-accessdate">. Retrieved 2009-11-15</span>.</span><span class="Z3988" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=bookitem&amp;rft.btitle=Corporate+Information%3A+Technology+Overview&amp;rft.atitle=&amp;rft.pub=%5B%5BGoogle%5D%5D&amp;rft_id=http%3A%2F%2Fwww.google.com%2Fcorporate%2Ftech.html&amp;rfr_id=info:sid/en.wikipedia.org:Google_search"><span style="display: none;">&#160;</span></span></li>
<li id="cite_note-9"><b><a href="#cite_ref-9">^</a></b> <span class="citation web"><a href="http://www.google.com/help/faq_filetypes.html#what" class="external text" rel="nofollow">"Google Frequently Asked Questions - File Types"</a>. <a href="/wiki/Google" title="Google">Google</a><span class="printonly">. <a href="http://www.google.com/help/faq_filetypes.html#what" class="external free" rel="nofollow">http://www.google.com/help/faq_filetypes.html#what</a></span><span class="reference-accessdate">. Retrieved 2008-01-29</span>.</span><span class="Z3988" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=bookitem&amp;rft.btitle=Google+Frequently+Asked+Questions+-+File+Types&amp;rft.atitle=&amp;rft.pub=%5B%5BGoogle%5D%5D&amp;rft_id=http%3A%2F%2Fwww.google.com%2Fhelp%2Ffaq_filetypes.html%23what&amp;rfr_id=info:sid/en.wikipedia.org:Google_search"><span style="display: none;">&#160;</span></span></li>
<li id="cite_note-10"><b><a href="#cite_ref-10">^</a></b> <span class="citation web">Sherman, Chris and Price, Gary. <a href="http://hdl.handle.net/2142/8528" class="external text" rel="nofollow">"The Invisible Web: Uncovering Sources Search Engines Can't See, In: <i>Library Trends</i> 52 (2) 2003: Organizing the Internet:"</a>. pp. 282–298<span class="printonly">. <a href="http://hdl.handle.net/2142/8528" class="external free" rel="nofollow">http://hdl.handle.net/2142/8528</a></span>.</span><span class="Z3988" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=bookitem&amp;rft.btitle=The+Invisible+Web%3A+Uncovering+Sources+Search+Engines+Can%27t+See%2C+In%3A+%27%27Library+Trends%27%27+52+%282%29+2003%3A+Organizing+the+Internet%3A&amp;rft.atitle=&amp;rft.aulast=Sherman%2C+Chris+and+Price%2C+Gary&amp;rft.au=Sherman%2C+Chris+and+Price%2C+Gary&amp;rft.pages=pp.+282%E2%80%93298&amp;rft_id=http%3A%2F%2Fhdl.handle.net%2F2142%2F8528&amp;rfr_id=info:sid/en.wikipedia.org:Google_search"><span style="display: none;">&#160;</span></span></li>
<li id="cite_note-11"><b><a href="#cite_ref-11">^</a></b> <span class="citation web"><a href="http://www.google.com/webmasters/guidelines.html" class="external text" rel="nofollow">"Google Webmaster Guidelines"</a>. Google<span class="printonly">. <a href="http://www.google.com/webmasters/guidelines.html" class="external free" rel="nofollow">http://www.google.com/webmasters/guidelines.html</a></span><span class="reference-accessdate">. Retrieved 2009-11-15</span>.</span><span class="Z3988" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=bookitem&amp;rft.btitle=Google+Webmaster+Guidelines&amp;rft.atitle=&amp;rft.pub=Google&amp;rft_id=http%3A%2F%2Fwww.google.com%2Fwebmasters%2Fguidelines.html&amp;rfr_id=info:sid/en.wikipedia.org:Google_search"><span style="display: none;">&#160;</span></span></li>
<li id="cite_note-12"><b><a href="#cite_ref-12">^</a></b> <span class="citation web"><a href="http://www.alexa.com/site/ds/top_sites?ts_mode=global&amp;lang=none" class="external text" rel="nofollow">"Top 500"</a>. <a href="/wiki/Alexa_Internet" title="Alexa Internet">Alexa</a><span class="printonly">. <a href="http://www.alexa.com/site/ds/top_sites?ts_mode=global&amp;lang=none" class="external free" rel="nofollow">http://www.alexa.com/site/ds/top_sites?ts_mode=global&amp;lang=none</a></span><span class="reference-accessdate">. Retrieved 2008-04-15</span>.</span><span class="Z3988" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=bookitem&amp;rft.btitle=Top+500&amp;rft.atitle=&amp;rft.pub=%5B%5BAlexa+Internet%7CAlexa%5D%5D&amp;rft_id=http%3A%2F%2Fwww.alexa.com%2Fsite%2Fds%2Ftop_sites%3Fts_mode%3Dglobal%26lang%3Dnone&amp;rfr_id=info:sid/en.wikipedia.org:Google_search"><span style="display: none;">&#160;</span></span></li>
<li id="cite_note-13"><b><a href="#cite_ref-13">^</a></b> <span class="citation web"><a href="http://www.google.com/support/bin/answer.py?answer=35889#stemming" class="external text" rel="nofollow">"Google:Stemming"</a>. Google<span class="printonly">. <a href="http://www.google.com/support/bin/answer.py?answer=35889#stemming" class="external free" rel="nofollow">http://www.google.com/support/bin/answer.py?answer=35889#stemming</a></span>.</span><span class="Z3988" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=bookitem&amp;rft.btitle=Google%3AStemming&amp;rft.atitle=&amp;rft.pub=Google&amp;rft_id=http%3A%2F%2Fwww.google.com%2Fsupport%2Fbin%2Fanswer.py%3Fanswer%3D35889%23stemming&amp;rfr_id=info:sid/en.wikipedia.org:Google_search"><span style="display: none;">&#160;</span></span></li>
<li id="cite_note-I.27m_feeling_lucky-14"><b><a href="#cite_ref-I.27m_feeling_lucky_14-0">^</a></b> <span class="citation web"><a href="http://valleywag.com/tech/google/im-feeling-lucky-button-costs-google-110-million-per-year-324927.php" class="external text" rel="nofollow">"I'm feeling lucky( button costs Google $110 million per year"</a>. Valleywag. 2007<span class="printonly">. <a href="http://valleywag.com/tech/google/im-feeling-lucky-button-costs-google-110-million-per-year-324927.php" class="external free" rel="nofollow">http://valleywag.com/tech/google/im-feeling-lucky-button-costs-google-110-million-per-year-324927.php</a></span><span class="reference-accessdate">. Retrieved 2008-01-19</span>.</span><span class="Z3988" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=bookitem&amp;rft.btitle=I%27m+feeling+lucky%28+button+costs+Google+%24110+million+per+year&amp;rft.atitle=&amp;rft.date=2007&amp;rft.pub=Valleywag&amp;rft_id=http%3A%2F%2Fvalleywag.com%2Ftech%2Fgoogle%2Fim-feeling-lucky-button-costs-google-110-million-per-year-324927.php&amp;rfr_id=info:sid/en.wikipedia.org:Google_search"><span style="display: none;">&#160;</span></span></li>
<li id="cite_note-15"><b><a href="#cite_ref-15">^</a></b> <span class="citation web"><a href="http://digitaldaily.allthingsd.com/20091030/goog-page/" class="external text" rel="nofollow">"Google’s New Homepage Motto: 'This Space Intentionally Left Blank'"</a>. WallStreetJournal. 2009<span class="printonly">. <a href="http://digitaldaily.allthingsd.com/20091030/goog-page/" class="external free" rel="nofollow">http://digitaldaily.allthingsd.com/20091030/goog-page/</a></span><span class="reference-accessdate">. Retrieved 2009-11-17</span>.</span><span class="Z3988" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=bookitem&amp;rft.btitle=Google%E2%80%99s+New+Homepage+Motto%3A+%27This+Space+Intentionally+Left+Blank%27&amp;rft.atitle=&amp;rft.date=2009&amp;rft.pub=WallStreetJournal&amp;rft_id=http%3A%2F%2Fdigitaldaily.allthingsd.com%2F20091030%2Fgoog-page%2F&amp;rfr_id=info:sid/en.wikipedia.org:Google_search"><span style="display: none;">&#160;</span></span></li>
<li id="cite_note-Rich-Snippets-16"><b><a href="#cite_ref-Rich-Snippets_16-0">^</a></b> <span class="citation web">Goel, Kavi; Ramanathan V. Guha, Othar Hansson (2009-05-12). <a href="http://googlewebmastercentral.blogspot.com/2009/05/introducing-rich-snippets.html" class="external text" rel="nofollow">"Introducing Rich Snippets"</a>. <i>Google Webmaster Central Blog</i>. Google<span class="printonly">. <a href="http://googlewebmastercentral.blogspot.com/2009/05/introducing-rich-snippets.html" class="external free" rel="nofollow">http://googlewebmastercentral.blogspot.com/2009/05/introducing-rich-snippets.html</a></span><span class="reference-accessdate">. Retrieved 2009-05-25</span>.</span><span class="Z3988" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=bookitem&amp;rft.btitle=Introducing+Rich+Snippets&amp;rft.atitle=Google+Webmaster+Central+Blog&amp;rft.aulast=Goel&amp;rft.aufirst=Kavi&amp;rft.au=Goel%2C%26%2332%3BKavi&amp;rft.date=2009-05-12&amp;rft.pub=Google&amp;rft_id=http%3A%2F%2Fgooglewebmastercentral.blogspot.com%2F2009%2F05%2Fintroducing-rich-snippets.html&amp;rfr_id=info:sid/en.wikipedia.org:Google_search"><span style="display: none;">&#160;</span></span></li>
<li id="cite_note-EmU-17">^ <a href="#cite_ref-EmU_17-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-EmU_17-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-EmU_17-2"><sup><i><b>c</b></i></sup></a> <span class="citation web"><a href="http://www.law.emory.edu/law-library/research/advanced-legal-research-class/finding-aids-and-searching/google.html" class="external text" rel="nofollow">"Google and Search Engines"</a>. <a href="/wiki/Emory_University_Law_School" title="Emory University Law School" class="mw-redirect">Emory University Law School</a>. 2006<span class="printonly">. <a href="http://www.law.emory.edu/law-library/research/advanced-legal-research-class/finding-aids-and-searching/google.html" class="external free" rel="nofollow">http://www.law.emory.edu/law-library/research/advanced-legal-research-class/finding-aids-and-searching/google.html</a></span>.</span><span class="Z3988" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=bookitem&amp;rft.btitle=Google+and+Search+Engines&amp;rft.atitle=&amp;rft.date=2006&amp;rft.pub=%5B%5BEmory+University+Law+School%5D%5D&amp;rft_id=http%3A%2F%2Fwww.law.emory.edu%2Flaw-library%2Fresearch%2Fadvanced-legal-research-class%2Ffinding-aids-and-searching%2Fgoogle.html&amp;rfr_id=info:sid/en.wikipedia.org:Google_search"><span style="display: none;">&#160;</span></span></li>
<li id="cite_note-GH-18">^ <a href="#cite_ref-GH_18-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-GH_18-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-GH_18-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-GH_18-3"><sup><i><b>d</b></i></sup></a> <a href="#cite_ref-GH_18-4"><sup><i><b>e</b></i></sup></a> <a href="#cite_ref-GH_18-5"><sup><i><b>f</b></i></sup></a> <a href="#cite_ref-GH_18-6"><sup><i><b>g</b></i></sup></a> <a href="#cite_ref-GH_18-7"><sup><i><b>h</b></i></sup></a> "Google Help Center – Alternate query types", 2009, webpage: <a href="http://www.google.com/help/operators.html" class="external text" rel="nofollow">G-help</a>.</li>
<li id="cite_note-Google_error_page-19">^ <a href="#cite_ref-Google_error_page_19-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-Google_error_page_19-1"><sup><i><b>b</b></i></sup></a> <span class="citation web"><a href="http://www.google.com/support/bin/answer.py?answer=15661" class="external text" rel="nofollow">"Google error page"</a><span class="printonly">. <a href="http://www.google.com/support/bin/answer.py?answer=15661" class="external free" rel="nofollow">http://www.google.com/support/bin/answer.py?answer=15661</a></span><span class="reference-accessdate">. Retrieved 2008-12-31</span>.</span><span class="Z3988" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=bookitem&amp;rft.btitle=Google+error+page&amp;rft.atitle=&amp;rft_id=http%3A%2F%2Fwww.google.com%2Fsupport%2Fbin%2Fanswer.py%3Fanswer%3D15661&amp;rfr_id=info:sid/en.wikipedia.org:Google_search"><span style="display: none;">&#160;</span></span></li>
<li id="cite_note-20"><b><a href="#cite_ref-20">^</a></b> <span class="citation news">Krebs, Brian (2009-01-31). <a href="http://voices.washingtonpost.com/securityfix/2009/01/google_this_internet_will_harm.html?hpid=news-col-blog" class="external text" rel="nofollow">"Google: This Internet May Harm Your Computer"</a>. <a href="/wiki/The_Washington_Post" title="The Washington Post">The Washington Post</a><span class="printonly">. <a href="http://voices.washingtonpost.com/securityfix/2009/01/google_this_internet_will_harm.html?hpid=news-col-blog" class="external free" rel="nofollow">http://voices.washingtonpost.com/securityfix/2009/01/google_this_internet_will_harm.html?hpid=news-col-blog</a></span><span class="reference-accessdate">. Retrieved 2009-01-31</span>.</span><span class="Z3988" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=bookitem&amp;rft.btitle=Google%3A+This+Internet+May+Harm+Your+Computer&amp;rft.atitle=&amp;rft.aulast=Krebs&amp;rft.aufirst=Brian&amp;rft.au=Krebs%2C%26%2332%3BBrian&amp;rft.date=2009-01-31&amp;rft.pub=%5B%5BThe+Washington+Post%5D%5D&amp;rft_id=http%3A%2F%2Fvoices.washingtonpost.com%2Fsecurityfix%2F2009%2F01%2Fgoogle_this_internet_will_harm.html%3Fhpid%3Dnews-col-blog&amp;rfr_id=info:sid/en.wikipedia.org:Google_search"><span style="display: none;">&#160;</span></span></li>
<li id="cite_note-googleblog-21">^ <a href="#cite_ref-googleblog_21-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-googleblog_21-1"><sup><i><b>b</b></i></sup></a> <span class="citation web">Mayer, Marissa (2009-01-31). <a href="http://googleblog.blogspot.com/2009/01/this-site-may-harm-your-computer-on.html" class="external text" rel="nofollow">"This site may harm your computer on every search result?!?!"</a>. <i>The Official Google Blog</i>. <a href="/wiki/Google" title="Google">Google</a><span class="printonly">. <a href="http://googleblog.blogspot.com/2009/01/this-site-may-harm-your-computer-on.html" class="external free" rel="nofollow">http://googleblog.blogspot.com/2009/01/this-site-may-harm-your-computer-on.html</a></span><span class="reference-accessdate">. Retrieved 2009-01-31</span>.</span><span class="Z3988" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=bookitem&amp;rft.btitle=This+site+may+harm+your+computer+on+every+search+result%3F%21%3F%21&amp;rft.atitle=The+Official+Google+Blog&amp;rft.aulast=Mayer&amp;rft.aufirst=Marissa&amp;rft.au=Mayer%2C%26%2332%3BMarissa&amp;rft.date=2009-01-31&amp;rft.pub=%5B%5BGoogle%5D%5D&amp;rft_id=http%3A%2F%2Fgoogleblog.blogspot.com%2F2009%2F01%2Fthis-site-may-harm-your-computer-on.html&amp;rfr_id=info:sid/en.wikipedia.org:Google_search"><span style="display: none;">&#160;</span></span></li>
<li id="cite_note-22"><b><a href="#cite_ref-22">^</a></b> <span class="citation web">Hwang, Dennis (June 8, 2004). <a href="http://googleblog.blogspot.com/2004/06/oodles-of-doodles.html" class="external text" rel="nofollow">"Oodles of Doodles"</a>. <a href="/wiki/Google" title="Google">Google</a> (corporate blog)<span class="printonly">. <a href="http://googleblog.blogspot.com/2004/06/oodles-of-doodles.html" class="external free" rel="nofollow">http://googleblog.blogspot.com/2004/06/oodles-of-doodles.html</a></span><span class="reference-accessdate">. Retrieved July 19, 2006</span>.</span><span class="Z3988" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=bookitem&amp;rft.btitle=Oodles+of+Doodles&amp;rft.atitle=&amp;rft.aulast=Hwang%2C+Dennis&amp;rft.au=Hwang%2C+Dennis&amp;rft.date=June+8%2C+2004&amp;rft.pub=%5B%5BGoogle%5D%5D+%28corporate+blog%29&amp;rft_id=http%3A%2F%2Fgoogleblog.blogspot.com%2F2004%2F06%2Foodles-of-doodles.html&amp;rfr_id=info:sid/en.wikipedia.org:Google_search"><span style="display: none;">&#160;</span></span></li>
<li id="cite_note-23"><b><a href="#cite_ref-23">^</a></b> <span class="citation web"><a href="http://www.google.com/logos/valentine07.gif" class="external text" rel="nofollow">"Google logos:<i>Valentine's Day logo</i>"</a>. February 14, 2007<span class="printonly">. <a href="http://www.google.com/logos/valentine07.gif" class="external free" rel="nofollow">http://www.google.com/logos/valentine07.gif</a></span><span class="reference-accessdate">. Retrieved April 6, 2007</span>.</span><span class="Z3988" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=bookitem&amp;rft.btitle=Google+logos%3A%27%27Valentine%27s+Day+logo%27%27&amp;rft.atitle=&amp;rft.date=February+14%2C+2007&amp;rft_id=http%3A%2F%2Fwww.google.com%2Flogos%2Fvalentine07.gif&amp;rfr_id=info:sid/en.wikipedia.org:Google_search"><span style="display: none;">&#160;</span></span></li>
<li id="cite_note-Harvey-24">^ <a href="#cite_ref-Harvey_24-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-Harvey_24-1"><sup><i><b>b</b></i></sup></a> <span class="citation news">Harvey, Mike (11 August 2009). <a href="http://technology.timesonline.co.uk/tol/news/tech_and_web/personal_tech/article6792403.ece" class="external text" rel="nofollow">"Google unveils new "Caffeine" search engine"</a>. London: The Times<span class="printonly">. <a href="http://technology.timesonline.co.uk/tol/news/tech_and_web/personal_tech/article6792403.ece" class="external free" rel="nofollow">http://technology.timesonline.co.uk/tol/news/tech_and_web/personal_tech/article6792403.ece</a></span><span class="reference-accessdate">. Retrieved 14 August 2009</span>.</span><span class="Z3988" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=bookitem&amp;rft.btitle=Google+unveils+new+%22Caffeine%22+search+engine&amp;rft.atitle=&amp;rft.aulast=Harvey&amp;rft.aufirst=Mike&amp;rft.au=Harvey%2C%26%2332%3BMike&amp;rft.date=11+August+2009&amp;rft.place=London&amp;rft.pub=The+Times&amp;rft_id=http%3A%2F%2Ftechnology.timesonline.co.uk%2Ftol%2Fnews%2Ftech_and_web%2Fpersonal_tech%2Farticle6792403.ece&amp;rfr_id=info:sid/en.wikipedia.org:Google_search"><span style="display: none;">&#160;</span></span></li>
<li id="cite_note-25"><b><a href="#cite_ref-25">^</a></b> <span class="citation news">Culp, Katie (12 August 2009). <a href="http://www.foxbusiness.com/story/markets/industries/technology/google-introduces-new-caffeine-search/" class="external text" rel="nofollow">"Google introduces new "Caffeine" search system"</a>. Fox News<span class="printonly">. <a href="http://www.foxbusiness.com/story/markets/industries/technology/google-introduces-new-caffeine-search/" class="external free" rel="nofollow">http://www.foxbusiness.com/story/markets/industries/technology/google-introduces-new-caffeine-search/</a></span><span class="reference-accessdate">. Retrieved 14 August 2009</span>.</span><span class="Z3988" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=bookitem&amp;rft.btitle=Google+introduces+new+%22Caffeine%22+search+system&amp;rft.atitle=&amp;rft.aulast=Culp&amp;rft.aufirst=Katie&amp;rft.au=Culp%2C%26%2332%3BKatie&amp;rft.date=12+August+2009&amp;rft.pub=Fox+News&amp;rft_id=http%3A%2F%2Fwww.foxbusiness.com%2Fstory%2Fmarkets%2Findustries%2Ftechnology%2Fgoogle-introduces-new-caffeine-search%2F&amp;rfr_id=info:sid/en.wikipedia.org:Google_search"><span style="display: none;">&#160;</span></span></li>
<li id="cite_note-26"><b><a href="#cite_ref-26">^</a></b> <span class="citation web"><a href="http://www.jeffwendland.com/2009/08/11/google-never-sleeps-with-caffeine/" class="external text" rel="nofollow">"Google never sleeps with Caffeine"</a><span class="printonly">. <a href="http://www.jeffwendland.com/2009/08/11/google-never-sleeps-with-caffeine/" class="external free" rel="nofollow">http://www.jeffwendland.com/2009/08/11/google-never-sleeps-with-caffeine/</a></span>.</span><span class="Z3988" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=bookitem&amp;rft.btitle=Google+never+sleeps+with+Caffeine&amp;rft.atitle=&amp;rft_id=http%3A%2F%2Fwww.jeffwendland.com%2F2009%2F08%2F11%2Fgoogle-never-sleeps-with-caffeine%2F&amp;rfr_id=info:sid/en.wikipedia.org:Google_search"><span style="display: none;">&#160;</span></span></li>
<li id="cite_note-Martin-27"><b><a href="#cite_ref-Martin_27-0">^</a></b> <span class="citation news">Martin, Paul (31 July 2009). <a href="http://blog.cube3marketing.com/2009/07/31/bing-the-new-search-engine-from-microsoft-and-yahoo/" class="external text" rel="nofollow">"Bing - The new Search Engine from Microsoft and Yahoo"</a>. Cube3 Marketing<span class="printonly">. <a href="http://blog.cube3marketing.com/2009/07/31/bing-the-new-search-engine-from-microsoft-and-yahoo/" class="external free" rel="nofollow">http://blog.cube3marketing.com/2009/07/31/bing-the-new-search-engine-from-microsoft-and-yahoo/</a></span><span class="reference-accessdate">. Retrieved 12 January 2010</span>.</span><span class="Z3988" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=bookitem&amp;rft.btitle=Bing+-+The+new+Search+Engine+from+Microsoft+and+Yahoo&amp;rft.atitle=&amp;rft.aulast=Martin&amp;rft.aufirst=Paul&amp;rft.au=Martin%2C%26%2332%3BPaul&amp;rft.date=31+July+2009&amp;rft.pub=Cube3+Marketing&amp;rft_id=http%3A%2F%2Fblog.cube3marketing.com%2F2009%2F07%2F31%2Fbing-the-new-search-engine-from-microsoft-and-yahoo%2F&amp;rfr_id=info:sid/en.wikipedia.org:Google_search"><span style="display: none;">&#160;</span></span></li>
<li id="cite_note-Paul-28"><b><a href="#cite_ref-Paul_28-0">^</a></b> <span class="citation news">Martin, Paul (27 August 2009). <a href="http://blog.cube3marketing.com/2009/08/27/caffeine-the-new-google-update/" class="external text" rel="nofollow">"Caffeine - The New Google Update"</a>. Cube3 Marketing<span class="printonly">. <a href="http://blog.cube3marketing.com/2009/08/27/caffeine-the-new-google-update/" class="external free" rel="nofollow">http://blog.cube3marketing.com/2009/08/27/caffeine-the-new-google-update/</a></span><span class="reference-accessdate">. Retrieved 12 January 2010</span>.</span><span class="Z3988" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=bookitem&amp;rft.btitle=Caffeine+-+The+New+Google+Update&amp;rft.atitle=&amp;rft.aulast=Martin&amp;rft.aufirst=Paul&amp;rft.au=Martin%2C%26%2332%3BPaul&amp;rft.date=27+August+2009&amp;rft.pub=Cube3+Marketing&amp;rft_id=http%3A%2F%2Fblog.cube3marketing.com%2F2009%2F08%2F27%2Fcaffeine-the-new-google-update%2F&amp;rfr_id=info:sid/en.wikipedia.org:Google_search"><span style="display: none;">&#160;</span></span></li>
<li id="cite_note-29"><b><a href="#cite_ref-29">^</a></b> <span class="citation news">Barnett, Emma (11 August 2009). <a href="http://www.telegraph.co.uk/technology/google/6009176/Google-reveals-caffeine-a-new-faster-search-engine.html" class="external text" rel="nofollow">"Google reveals caffeine: a new faster search engine"</a>. The Telegraph<span class="printonly">. <a href="http://www.telegraph.co.uk/technology/google/6009176/Google-reveals-caffeine-a-new-faster-search-engine.html" class="external free" rel="nofollow">http://www.telegraph.co.uk/technology/google/6009176/Google-reveals-caffeine-a-new-faster-search-engine.html</a></span><span class="reference-accessdate">. Retrieved 14 August 2009</span>.</span><span class="Z3988" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=bookitem&amp;rft.btitle=Google+reveals+caffeine%3A+a+new+faster+search+engine&amp;rft.atitle=&amp;rft.aulast=Barnett&amp;rft.aufirst=Emma&amp;rft.au=Barnett%2C%26%2332%3BEmma&amp;rft.date=11+August+2009&amp;rft.pub=The+Telegraph&amp;rft_id=http%3A%2F%2Fwww.telegraph.co.uk%2Ftechnology%2Fgoogle%2F6009176%2FGoogle-reveals-caffeine-a-new-faster-search-engine.html&amp;rfr_id=info:sid/en.wikipedia.org:Google_search"><span style="display: none;">&#160;</span></span></li>
<li id="cite_note-international-30">^ <a href="#cite_ref-international_30-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-international_30-1"><sup><i><b>b</b></i></sup></a> <a href="http://www.google.com/language_tools?hl=en" class="external text" rel="nofollow">Language Tools</a></li>
<li id="cite_note-gwcds-31">^ <a href="#cite_ref-gwcds_31-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-gwcds_31-1"><sup><i><b>b</b></i></sup></a> <a href="http://www.seas.upenn.edu/~zives/cis555/slides/I-Crawlers-Sync.ppt" class="external text" rel="nofollow">Google, Web Crawling and Distributed Synchronization</a> p. 11.</li>
<li id="cite_note-32"><b><a href="#cite_ref-32">^</a></b> <a href="http://googleblog.blogspot.com/2009/01/powering-google-search.html" class="external text" rel="nofollow">Blogspot.com</a>, Powering a Google search</li>
</ol>
</div>
<h2><span class="mw-headline" id="Further_reading">Further reading</span></h2>
<ul>
<li><i><a href="/wiki/Google_Hacks" title="Google Hacks">Google Hacks</a></i> from <a href="/wiki/O%27Reilly_Media" title="O'Reilly Media">O'Reilly</a> is a book containing tips about using Google effectively. Now in its third edition. <a href="/wiki/Special:BookSources/0596527063" class="internal mw-magiclink-isbn">ISBN 0-596-52706-3</a>.</li>
<li><i>Google: The Missing Manual</i> by Sarah Milstein and Rael Dornfest (O'Reilly, 2004). <a href="/wiki/Special:BookSources/0596006136" class="internal mw-magiclink-isbn">ISBN 0-596-00613-6</a></li>
<li><i>How to Do Everything with Google</i> by Fritz Schneider, Nancy Blachman, and Eric Fredricksen (McGraw-Hill Osborne Media, 2003). <a href="/wiki/Special:BookSources/0072231742" class="internal mw-magiclink-isbn">ISBN 0-07-223174-2</a></li>
<li><i>Google Power</i> by Chris Sherman (McGraw-Hill Osborne Media, 2005). <a href="/wiki/Special:BookSources/0072257873" class="internal mw-magiclink-isbn">ISBN 0-07-225787-3</a></li>
<li><span class="citation Journal">Barroso, Luiz Andre; Dean, Jeffrey; Hölzle, Urs (2003). "Web Search for a Planet: The Google Cluster Architecture". <i><a href="/wiki/IEEE_Micro" title="IEEE Micro">IEEE Micro</a></i> <b>23</b> (2): 22–28. <a href="/wiki/Digital_object_identifier" title="Digital object identifier">doi</a>:<a href="http://dx.doi.org/10.1109%2FMM.2003.1196112" class="external text" rel="nofollow">10.1109/MM.2003.1196112</a>.</span><span class="Z3988" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.atitle=Web+Search+for+a+Planet%3A+The+Google+Cluster+Architecture&amp;rft.jtitle=%5B%5BIEEE+Micro%5D%5D&amp;rft.aulast=Barroso&amp;rft.aufirst=Luiz+Andre&amp;rft.au=Barroso%2C%26%2332%3BLuiz+Andre&amp;rft.date=2003&amp;rft.volume=23&amp;rft.issue=2&amp;rft.pages=22%26ndash%3B28&amp;rft_id=info:doi/10.1109%2FMM.2003.1196112&amp;rfr_id=info:sid/en.wikipedia.org:Google_search"><span style="display: none;">&#160;</span></span></li>
</ul>
<h2><span class="mw-headline" id="External_links">External links</span></h2>
<ul>
<li><a href="http://www.google.com" class="external text" rel="nofollow">Google.com</a></li>
<li><a href="http://seo-kolkata.blogspot.com/2008/09/google-home-page-evolution-from-1998-to.html" class="external text" rel="nofollow">Blogpost.com</a>, Evolution of Google Home Page from 1998 to 2008</li>
<li><a href="http://web.archive.org/web/19981202230410/http://www.google.com/" class="external text" rel="nofollow">Web.Archive.org</a>, A cached page of Google from 1998</li>
</ul>
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<span class="" style="font-size:110%;"><a href="/wiki/Google" title="Google">Google Inc.</a></span></th>
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<td class="navbox-abovebelow" style=";" colspan="2"><span style="white-space:nowrap"><b>Chairman/CEO</b>: <a href="/wiki/Eric_E._Schmidt" title="Eric E. Schmidt">Eric E. Schmidt</a>&#160;<b>·</b></span> <span style="white-space:nowrap"><b>Director/Technology President/Co-Founder</b>: <a href="/wiki/Sergey_Brin" title="Sergey Brin">Sergey Brin</a>&#160;<b>·</b></span> <span style="white-space:nowrap"><b>Director/Products President/Co-Founder</b>: <a href="/wiki/Larry_Page" title="Larry Page">Larry Page</a><br />
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<div style="padding:0em 0.25em"><a href="/wiki/Google_Alerts" title="Google Alerts">Alerts</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Buzz" title="Google Buzz">Buzz</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Calendar" title="Google Calendar">Calendar</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Friend_Connect" title="Google Friend Connect">Friend Connect</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Gmail" title="Gmail">Gmail</a><small>&#160;(<a href="/wiki/History_of_Gmail" title="History of Gmail">history</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Gmail_interface" title="Gmail interface">interface</a>)</small><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Groups" title="Google Groups">Groups</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Talk" title="Google Talk">Gtalk</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Latitude" title="Google Latitude">Latitude</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Notebook" title="Google Notebook">Notebook</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Orkut" title="Orkut">Orkut</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Questions_and_Answers" title="Google Questions and Answers">Q &amp; A</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Reader" title="Google Reader">Reader</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Translate" title="Google Translate">Translate</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Voice" title="Google Voice">Voice</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Wave" title="Google Wave">Wave</a></div>
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<td class="navbox-group" style=";;">Software</td>
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<div style="padding:0em 0.25em"><a href="/wiki/Google_Chrome" title="Google Chrome">Chrome</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Chrome_OS" title="Google Chrome OS">Chrome OS</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Desktop" title="Google Desktop">Desktop</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Earth" title="Google Earth">Earth</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Desktop#Gadgets_.26_plug-ins" title="Google Desktop">Gadgets</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Gmail_Mobile" title="Gmail Mobile" class="mw-redirect">Gmail Mobile</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Japanese_Input" title="Google Japanese Input">Japanese Input</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Pack" title="Google Pack">Pack</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Picasa" title="Picasa">Picasa</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Picnik" title="Picnik">Picnik</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Pinyin" title="Google Pinyin">Pinyin</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_PowerMeter" title="Google PowerMeter">PowerMeter</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/SketchUp" title="SketchUp">SketchUp</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Talk" title="Google Talk">Talk</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Toolbar" title="Google Toolbar">Toolbar</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Pack#Google_Updater" title="Google Pack">Updater</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Urchin_(software)" title="Urchin (software)">Urchin</a></div>
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<td class="navbox-group" style=";;"><a href="/wiki/Google_platform" title="Google platform">Platforms</a></td>
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<div style="padding:0em 0.25em"><a href="/wiki/Google_Account" title="Google Account">Account</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Android_(mobile_device_platform)" title="Android (mobile device platform)" class="mw-redirect">Android</a> <small>(<a href="/wiki/Nexus_One" title="Nexus One">Nexus One</a>)</small><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_App_Engine" title="Google App Engine">App Engine</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Apps" title="Google Apps">Apps</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Base" title="Google Base">Base</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/BigTable" title="BigTable">BigTable</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Caja_(programming_language)" title="Caja (programming language)" class="mw-redirect">Caja</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Co-op" title="Google Co-op">Co-op</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Gears_(software)" title="Gears (software)">Gears</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_File_System" title="Google File System">GFS</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Health" title="Google Health">Health</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Native_Client" title="Google Native Client">Native Client</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/OpenSocial" title="OpenSocial">OpenSocial</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Public_DNS" title="Google Public DNS">Public DNS</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Wave_Federation_Protocol" title="Google Wave Federation Protocol">Wave</a></div>
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<td class="navbox-group" style=";;">Development tools</td>
<td style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px;;;" class="navbox-list navbox-odd">
<div style="padding:0em 0.25em"><a href="/wiki/Google_AJAX_APIs" title="Google AJAX APIs">AJAX APIs</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Closure_Tools" title="Google Closure Tools">Closure Tools</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Code" title="Google Code">Code</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Gadgets_API" title="Google Gadgets API">Gadgets API</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/GData" title="GData">GData</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Go_(programming_language)" title="Go (programming language)">Go</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Googlebot" title="Googlebot">Googlebot</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Guice" title="Google Guice">Guice</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Web_Server" title="Google Web Server">GWS</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Image_Labeler" title="Google Image Labeler">Image Labeler</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Keyhole_Markup_Language" title="Keyhole Markup Language">KML</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/MapReduce" title="MapReduce">MapReduce</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/SketchUp_Ruby" title="SketchUp Ruby">SketchUp Ruby</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Sitemaps" title="Sitemaps">Sitemaps</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Summer_of_Code" title="Google Summer of Code">Summer of Code</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_TechTalks" title="Google TechTalks" class="mw-redirect">TechTalks</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Web_Toolkit" title="Google Web Toolkit">Web Toolkit</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Website_Optimizer" title="Google Website Optimizer" class="mw-redirect">Website Optimizer</a></div>
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<td class="navbox-group" style=";;">Publishing</td>
<td style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px;;;" class="navbox-list navbox-even">
<div style="padding:0em 0.25em"><a href="/wiki/3D_Warehouse" title="3D Warehouse">3D Warehouse</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Blogger_(service)" title="Blogger (service)">Blogger</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Bookmarks" title="Google Bookmarks">Bookmarks</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Docs" title="Google Docs">Docs</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/FeedBurner" title="FeedBurner">FeedBurner</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/IGoogle" title="IGoogle">iGoogle</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Jaiku" title="Jaiku">Jaiku</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Knol" title="Knol">Knol</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Map_Maker" title="Google Map Maker">Map Maker</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Panoramio" title="Panoramio">Panoramio</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Picasa#Picasa_Web_Albums" title="Picasa">Picasa Web Albums</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Sites" title="Google Sites">Sites (JotSpot)</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/YouTube" title="YouTube">YouTube</a></div>
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<td class="navbox-group" style=";;">Search (<a href="/wiki/PageRank" title="PageRank">PageRank</a>)</td>
<td style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px;;;" class="navbox-list navbox-odd">
<div style="padding:0em 0.25em"><a href="/wiki/Google_Search_Appliance" title="Google Search Appliance">Appliance</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Audio_Indexing" title="Google Audio Indexing">Audio</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Book_Search" title="Google Book Search" class="mw-redirect">Books</a><small>&#160;(<a href="/wiki/Google_Books_Library_Project" title="Google Books Library Project">Library Project</a>)</small><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Code_Search" title="Google Code Search">Code</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Desktop" title="Google Desktop">Desktop</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Fast_Flip" title="Google Fast Flip">Fast Flip</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Finance" title="Google Finance">Finance</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/GOOG-411" title="GOOG-411">GOOG-411</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Image_Search" title="Google Image Search" class="mw-redirect">Images</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Maps" title="Google Maps">Maps</a><small>&#160;(<a href="/wiki/Google_Street_View" title="Google Street View">Street View</a>, <a href="/wiki/Google_Street_View_Privacy_Concerns" title="Google Street View Privacy Concerns" class="mw-redirect">Street View Privacy Concerns</a>)</small><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_News" title="Google News">News</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Patents" title="Google Patents">Patents</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Product_Search" title="Google Product Search">Products</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Scholar" title="Google Scholar">Scholar</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_SearchWiki" title="Google SearchWiki">SearchWiki</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Groups" title="Google Groups">Usenet</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Video" title="Google Video" class="mw-redirect">Video</a><span style="font-weight:bold;">&#160;·</span> <strong class="selflink">Web Search</strong><span style="font-weight:bold;">&#160;·</span> Analysis: <a href="/wiki/Google_Insights_for_Search" title="Google Insights for Search">Insights for Search</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Trends" title="Google Trends">Trends</a><span style="font-weight:bold;">&#160;·</span></div>
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<td class="navbox-group" style=";;"><a href="/wiki/List_of_Google_products#Previous_products" title="List of Google products">Discontinued</a></td>
<td style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px;;;" class="navbox-list navbox-even">
<div style="padding:0em 0.25em"><a href="/wiki/Google_Answers" title="Google Answers">Answers</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Browser_Sync" title="Google Browser Sync">Browser Sync</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/AdWords#Click-to-Call" title="AdWords">Click-to-Call</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Dodgeball_(service)" title="Dodgeball (service)">Dodgeball</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Joga_Bonito" title="Joga Bonito">Joga Bonito</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Lively" title="Google Lively">Lively</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Mashup_Editor" title="Google Mashup Editor">Mashup Editor</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Page_Creator" title="Google Page Creator">Page Creator</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Video_Marketplace" title="Google Video Marketplace">Video Marketplace</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Web_Accelerator" title="Google Web Accelerator">Web Accelerator</a></div>
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<td class="navbox-group" style=";;"><a href="/wiki/Category:Google" title="Category:Google">See also</a></td>
<td style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px;;;" class="navbox-list navbox-odd">
<div style="padding:0em 0.25em"><a href="/wiki/List_of_acquisitions_by_Google" title="List of acquisitions by Google">Acquisitions</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_bomb" title="Google bomb">Bomb</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Censorship_by_Google" title="Censorship by Google">Censorship</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Criticism_of_Google" title="Criticism of Google">Criticism</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google.org#Google_Foundation" title="Google.org">Foundation</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_China" title="Google China">Google China</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_TV" title="Google TV">Google TV</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google.org" title="Google.org">Google.org</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Googleplex" title="Googleplex">Googleplex</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/History_of_Google" title="History of Google">History</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google%27s_hoaxes" title="Google's hoaxes">Hoaxes</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Fiber" title="Google Fiber">Google Fiber</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_search#.22I.27m_Feeling_Lucky.22" title="Google search">I'm Feeling Lucky</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_I/O" title="Google I/O">I/O</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Labs" title="Google Labs">Labs</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_logo" title="Google logo">Logo</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Lunar_X_Prize" title="Google Lunar X Prize">Lunar X Prize</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/List_of_Google_products" title="List of Google products">Products</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_Ventures" title="Google Ventures">Google Ventures</a><span style="font-weight:bold;">&#160;·</span> <a href="/wiki/Google_WiFi" title="Google WiFi">WiFi</a></div>
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<td class="navbox-abovebelow" style=";" colspan="2"><span style="white-space:nowrap"><b>Annual revenue</b>: <a href="/wiki/United_States_dollar" title="United States dollar">US$</a>21.80 <a href="/wiki/1000000000_(number)" title="1000000000 (number)">billion</a> (<a href="/wiki/Fiscal_year" title="Fiscal year">FY</a> 2008, <span style="color: #0c0; font-size: larger;">▲</span>31% from 2007)&#160;<b>·</b></span> <span style="white-space:nowrap"><b><a href="/wiki/Category:Google_employees" title="Category:Google employees">Employees</a></b>: 19,786 full-time (Jun. 30, 2009)&#160;<b>·</b></span> <span style="white-space:nowrap"><b><a href="/wiki/History_of_Google#Financing_and_initial_public_offering" title="History of Google">Stock symbol</a></b>: (<a href="/wiki/NASDAQ" title="NASDAQ">NASDAQ</a>:&#160;<a href="http://quotes.nasdaq.com/asp/SummaryQuote.asp?symbol=GOOG&amp;selected=GOOG" class="external text" rel="nofollow">GOOG</a>, <a href="/wiki/London_Stock_Exchange" title="London Stock Exchange">LSE</a>:&#160;<a href="http://www.londonstockexchange.com/exchange/prices-and-news/stocks/prices-search/stock-prices-search.html?nameCode=GGEA" class="external text" rel="nofollow">GGEA</a>)&#160;<b>·</b></span> <span style="white-space:nowrap"><b>Motto</b>: <a href="/wiki/Don%27t_be_evil" title="Don't be evil">Don't be evil</a>&#160;<b>·</b></span> <span style="white-space:nowrap"><b><a href="/wiki/Google.com" title="Google.com" class="mw-redirect">Website</a></b>: <a href="http://www.google.com/" class="external text" rel="nofollow">www.google.com</a></span></td>
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